Update src/main/java/dev/sillyangel/calc/Calculator.java
This commit is contained in:
@@ -1,317 +1,368 @@
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package dev.sillyangel.calc;
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package dev.sillyangel.calc;
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import java.awt.EventQueue;
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import java.awt.EventQueue;
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import javax.swing.JFrame;
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import javax.swing.JFrame;
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import javax.swing.JPanel;
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import javax.swing.JPanel;
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import javax.swing.border.EmptyBorder;
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import javax.swing.border.EmptyBorder;
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import javax.swing.UIManager;
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import javax.swing.UIManager;
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import javax.swing.GroupLayout;
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import javax.swing.GroupLayout;
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import javax.swing.GroupLayout.Alignment;
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import javax.swing.GroupLayout.Alignment;
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import javax.swing.JTextField;
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import javax.swing.JTextField;
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import java.awt.GridLayout;
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import java.awt.GridLayout;
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import javax.swing.JButton;
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import javax.swing.JButton;
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import java.awt.event.ActionListener;
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import java.awt.event.ActionListener;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionEvent;
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import java.awt.Color;
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import java.awt.Color;
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import java.awt.Font;
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import java.awt.Font;
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import java.awt.Toolkit;
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import java.awt.Toolkit;
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import javax.swing.JMenuBar;
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import javax.swing.JMenuBar;
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import javax.swing.JMenu;
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import javax.swing.JMenu;
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import javax.swing.JMenuItem;
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import javax.swing.JMenuItem;
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public class Calculator extends JFrame {
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public class Calculator extends JFrame {
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private static final long serialVersionUID = 1L;
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private static final long serialVersionUID = 1L;
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private JPanel contentPane;
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private JPanel contentPane;
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private JTextField display;
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private JTextField display;
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private String operand1;
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private String operand1;
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private String operator;
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private String operator;
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private String operand2;
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private String operand2;
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protected boolean resultVisible;
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protected boolean resultVisible;
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protected double result;
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protected double result;
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/**
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/**
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* Launch the application.
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* Launch the application.
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*/
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*/
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public static void main(String[] args) {
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public static void main(String[] args) {
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try {
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try {
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UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
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UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
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} catch (Throwable e) {
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} catch (Throwable e) {
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e.printStackTrace();
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e.printStackTrace();
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}
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}
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EventQueue.invokeLater(new Runnable() {
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EventQueue.invokeLater(new Runnable() {
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public void run() {
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public void run() {
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try {
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try {
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Calculator frame = new Calculator();
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Calculator frame = new Calculator();
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frame.setVisible(true);
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frame.setVisible(true);
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} catch (Exception e) {
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} catch (Exception e) {
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e.printStackTrace();
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e.printStackTrace();
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}
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}
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}
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}
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});
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});
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}
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}
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/**
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/**
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* Create the frame.
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* Create the frame.
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*/
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*/
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public Calculator() {
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public Calculator() {
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setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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setIconImage(Toolkit.getDefaultToolkit().getImage(Calculator.class.getResource("/images/appIcon.png")));
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setIconImage(Toolkit.getDefaultToolkit().getImage(Calculator.class.getResource("/images/appIcon.png")));
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setTitle("Calc (short for calculator)");
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setTitle("Calc (short for calculator)");
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setBounds(100, 100, 634, 553);
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setBounds(100, 100, 634, 553);
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JMenuBar menuBar = new JMenuBar();
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JMenuBar menuBar = new JMenuBar();
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JMenu fileMenu = new JMenu("File");
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JMenu fileMenu = new JMenu("File");
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JMenuItem exitItem = new JMenuItem("Exit");
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JMenuItem exitItem = new JMenuItem("Exit");
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exitItem.addActionListener(e -> System.exit(0));
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exitItem.addActionListener(e -> System.exit(0));
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fileMenu.add(exitItem);
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fileMenu.add(exitItem);
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menuBar.add(fileMenu);
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menuBar.add(fileMenu);
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setJMenuBar(menuBar);
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setJMenuBar(menuBar);
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contentPane = new JPanel();
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contentPane = new JPanel();
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contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
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contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
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setContentPane(contentPane);
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setContentPane(contentPane);
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display = new JTextField();
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display = new JTextField();
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display.setEditable(false);
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display.setForeground(new Color(30, 144, 255));
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display.setFont(new Font("Tahoma", Font.PLAIN, 22));
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display.setBackground(new Color(255, 255, 255));
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display.setColumns(10);
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display.setEditable(false);
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JPanel buttonPanel = new JPanel();
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display.setFont(new Font("Tahoma", Font.PLAIN, 22));
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GroupLayout gl_contentPane = new GroupLayout(contentPane);
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display.setColumns(10);
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gl_contentPane.setHorizontalGroup(
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JPanel buttonPanel = new JPanel();
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gl_contentPane.createParallelGroup(Alignment.LEADING)
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GroupLayout gl_contentPane = new GroupLayout(contentPane);
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.addGroup(Alignment.TRAILING, gl_contentPane.createSequentialGroup()
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gl_contentPane.setHorizontalGroup(
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.addContainerGap()
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gl_contentPane.createParallelGroup(Alignment.LEADING)
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.addGroup(gl_contentPane.createParallelGroup(Alignment.TRAILING)
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.addGroup(Alignment.TRAILING, gl_contentPane.createSequentialGroup()
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.addComponent(buttonPanel, Alignment.LEADING, GroupLayout.DEFAULT_SIZE, 587, Short.MAX_VALUE)
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.addContainerGap()
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.addComponent(display, Alignment.LEADING, GroupLayout.DEFAULT_SIZE, 587, Short.MAX_VALUE))
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.addGroup(gl_contentPane.createParallelGroup(Alignment.TRAILING)
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.addContainerGap())
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.addComponent(buttonPanel, Alignment.LEADING, GroupLayout.DEFAULT_SIZE, 587, Short.MAX_VALUE)
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);
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.addComponent(display, Alignment.LEADING, GroupLayout.DEFAULT_SIZE, 587, Short.MAX_VALUE))
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gl_contentPane.setVerticalGroup(
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.addContainerGap())
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gl_contentPane.createParallelGroup(Alignment.LEADING)
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);
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.addGroup(gl_contentPane.createSequentialGroup()
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gl_contentPane.setVerticalGroup(
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.addGap(23)
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gl_contentPane.createParallelGroup(Alignment.LEADING)
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.addComponent(display, GroupLayout.PREFERRED_SIZE, 78, GroupLayout.PREFERRED_SIZE)
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.addGroup(gl_contentPane.createSequentialGroup()
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.addGap(18)
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.addGap(23)
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.addComponent(buttonPanel, GroupLayout.DEFAULT_SIZE, 349, Short.MAX_VALUE)
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.addComponent(display, GroupLayout.PREFERRED_SIZE, 78, GroupLayout.PREFERRED_SIZE)
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.addContainerGap())
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.addGap(18)
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);
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.addComponent(buttonPanel, GroupLayout.DEFAULT_SIZE, 349, Short.MAX_VALUE)
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buttonPanel.setLayout(new GridLayout(0, 5, 0, 0));
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.addContainerGap())
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);
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JButton btn7 = new JButton("7");
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buttonPanel.setLayout(new GridLayout(0, 5, 0, 0));
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btn7.addActionListener(new ActionListener() {
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public void actionPerformed(ActionEvent e) {
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JButton btn0 = new JButton("0");
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processDigit(e.getActionCommand());
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JButton btn1 = new JButton("1");
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}
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JButton btn2 = new JButton("2");
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});
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JButton btn3 = new JButton("3");
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buttonPanel.add(btn7);
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JButton btn4 = new JButton("4");
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JButton btn5 = new JButton("5");
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JButton btn8 = new JButton("8");
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JButton btn6 = new JButton("6"); // why was 6 afraid of 7... because 7 8 9 :sob:
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btn8.addActionListener(new ActionListener() {
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JButton btn7 = new JButton("7"); // 67!
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public void actionPerformed(ActionEvent e) {
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JButton btn8 = new JButton("8");
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processDigit(e.getActionCommand());
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JButton btn9 = new JButton("9");
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}
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});
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btn0.setFont(new Font("Tahoma", Font.PLAIN, 29));
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buttonPanel.add(btn8);
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btn0.addActionListener(new ActionListener() {
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public void actionPerformed(ActionEvent e) {
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JButton btn9 = new JButton("9");
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processDigit(e.getActionCommand());
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btn9.addActionListener(new ActionListener() {
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}
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public void actionPerformed(ActionEvent e) {
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});
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processDigit(e.getActionCommand());
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}
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btn1.setFont(new Font("Tahoma", Font.PLAIN, 29));
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});
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btn1.addActionListener(new ActionListener() {
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buttonPanel.add(btn9);
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public void actionPerformed(ActionEvent e) {
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processDigit(e.getActionCommand());
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JButton btnDiv = new JButton("/");
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}
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btnDiv.addActionListener(new ActionListener() {
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});
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public void actionPerformed(ActionEvent e) {
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setOperator(e.getActionCommand());
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btn2.setFont(new Font("Tahoma", Font.PLAIN, 29));
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}
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btn2.addActionListener(new ActionListener() {
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});
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public void actionPerformed(ActionEvent e) {
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buttonPanel.add(btnDiv);
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processDigit(e.getActionCommand());
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}
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JButton btnErase = new JButton("DEL");
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});
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btnErase.addActionListener(new ActionListener() {
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public void actionPerformed(ActionEvent e) {
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btn3.setFont(new Font("Tahoma", Font.PLAIN, 29));
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clear();
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btn3.addActionListener(new ActionListener() {
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}
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public void actionPerformed(ActionEvent e) {
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});
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processDigit(e.getActionCommand());
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buttonPanel.add(btnErase);
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}
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});
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JButton btn4 = new JButton("4");
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btn4.addActionListener(new ActionListener() {
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btn4.setFont(new Font("Tahoma", Font.PLAIN, 29));
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public void actionPerformed(ActionEvent e) {
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btn4.addActionListener(new ActionListener() {
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processDigit(e.getActionCommand());
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public void actionPerformed(ActionEvent e) {
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}
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processDigit(e.getActionCommand());
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});
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}
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buttonPanel.add(btn4);
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});
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JButton btn5 = new JButton("5");
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btn5.setFont(new Font("Tahoma", Font.PLAIN, 29));
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btn5.addActionListener(new ActionListener() {
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btn5.addActionListener(new ActionListener() {
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public void actionPerformed(ActionEvent e) {
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public void actionPerformed(ActionEvent e) {
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processDigit(e.getActionCommand());
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processDigit(e.getActionCommand());
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}
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}
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});
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});
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buttonPanel.add(btn5);
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btn6.setFont(new Font("Tahoma", Font.PLAIN, 29));
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JButton btn6 = new JButton("6");
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btn6.addActionListener(new ActionListener() {
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btn6.addActionListener(new ActionListener() {
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public void actionPerformed(ActionEvent e) {
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public void actionPerformed(ActionEvent e) {
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processDigit(e.getActionCommand());
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processDigit(e.getActionCommand());
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}
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}
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});
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});
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buttonPanel.add(btn6);
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btn7.setFont(new Font("Tahoma", Font.PLAIN, 29));
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btn7.addActionListener(new ActionListener() {
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JButton btn3 = new JButton("3");
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public void actionPerformed(ActionEvent e) {
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btn3.addActionListener(new ActionListener() {
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processDigit(e.getActionCommand());
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public void actionPerformed(ActionEvent e) {
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}
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processDigit(e.getActionCommand());
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});
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}
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});
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btn8.setFont(new Font("Tahoma", Font.PLAIN, 29));
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btn8.addActionListener(new ActionListener() {
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public void actionPerformed(ActionEvent e) {
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JButton btn1 = new JButton("1");
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processDigit(e.getActionCommand());
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btn1.addActionListener(new ActionListener() {
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}
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public void actionPerformed(ActionEvent e) {
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});
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processDigit(e.getActionCommand());
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}
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btn9.setFont(new Font("Tahoma", Font.PLAIN, 29));
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});
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btn9.addActionListener(new ActionListener() {
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public void actionPerformed(ActionEvent e) {
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JButton btnMul = new JButton("*");
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processDigit(e.getActionCommand());
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btnMul.addActionListener(new ActionListener() {
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}
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public void actionPerformed(ActionEvent e) {
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});
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setOperator(e.getActionCommand());
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}
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// other stuff
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});
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JButton btnErase = new JButton("DEL");
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buttonPanel.add(btnMul);
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JButton empty = new JButton("");
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JButton btnClear = new JButton("C");
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JButton btnClear = new JButton("C");
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JButton btnPlusMin = new JButton("+/-");
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btnClear.addActionListener(new ActionListener() {
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JButton btnDot = new JButton(".");
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public void actionPerformed(ActionEvent e) {
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clear();
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btnErase.setFont(new Font("Tahoma", Font.PLAIN, 29));
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}
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btnErase.addActionListener(new ActionListener() {
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});
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public void actionPerformed(ActionEvent e) {
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buttonPanel.add(btnClear);
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clear();
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buttonPanel.add(btn1);
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}
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});
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JButton btn2 = new JButton("2");
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btn2.addActionListener(new ActionListener() {
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empty.setBackground(Color.WHITE);
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public void actionPerformed(ActionEvent e) {
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empty.setEnabled(false);
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processDigit(e.getActionCommand());
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}
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btnClear.setFont(new Font("Tahoma", Font.PLAIN, 29));
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});
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btnClear.addActionListener(new ActionListener() {
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buttonPanel.add(btn2);
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public void actionPerformed(ActionEvent e) {
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buttonPanel.add(btn3);
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clear();
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}
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});
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JButton btn0 = new JButton("0");
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btn0.addActionListener(new ActionListener() {
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btnPlusMin.setFont(new Font("Tahoma", Font.PLAIN, 29));
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public void actionPerformed(ActionEvent e) {
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btnPlusMin.addActionListener(new ActionListener() {
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processDigit(e.getActionCommand());
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public void actionPerformed(ActionEvent e) {
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}
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String tmp = display.getText();
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});
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if (tmp == null || tmp.isEmpty()) return;
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char first = tmp.charAt(0);
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JButton btnPlus = new JButton("+");
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if (first == '-') {
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btnPlus.addActionListener(new ActionListener() {
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tmp = tmp.substring(1, tmp.length());
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public void actionPerformed(ActionEvent e) {
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display.setText(tmp);
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setOperator(e.getActionCommand());
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} else {
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}
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display.setText("-" + tmp);
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});
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}
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buttonPanel.add(btnPlus);
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}
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});
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JButton empty = new JButton("");
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empty.setBackground(Color.WHITE);
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btnDot.setFont(new Font("Tahoma", Font.PLAIN, 29));
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empty.setEnabled(false);
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btnDot.addActionListener(new ActionListener() {
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buttonPanel.add(empty);
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public void actionPerformed(ActionEvent e) {
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String n = display.getText(); // get the text on the display
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JButton btnPlusMin = new JButton("+/-");
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if (n.contains(".")) return; // if it already contains a "." skip rest of this
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btnPlusMin.addActionListener(new ActionListener() {
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processDigit(e.getActionCommand());
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public void actionPerformed(ActionEvent e) {
|
|
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String tmp = display.getText();
|
}
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if (tmp == null || tmp.isEmpty()) return;
|
});
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char first = tmp.charAt(0);
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|
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if (first == '-') {
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// math stuff
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tmp = tmp.substring(1, tmp.length());
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display.setText(tmp);
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JButton btnDiv = new JButton("/");
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} else {
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JButton btnMul = new JButton("*");
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display.setText("-" + tmp);
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JButton btnMin = new JButton("-");
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}
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JButton btnPlus = new JButton("+");
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}
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});
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btnDiv.setFont(new Font("Tahoma", Font.PLAIN, 29));
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buttonPanel.add(btnPlusMin);
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btnDiv.addActionListener(new ActionListener() {
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buttonPanel.add(btn0);
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public void actionPerformed(ActionEvent e) {
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setOperator(e.getActionCommand());
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JButton btnDot = new JButton(".");
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btnDiv.setForeground(new Color(30, 144, 255));
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btnDot.addActionListener(new ActionListener() {
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btnMul.setForeground(new Color(0, 0, 0));
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public void actionPerformed(ActionEvent e) {
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btnPlus.setForeground(new Color(0, 0, 0));
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String n = display.getText(); // get the text on the display
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btnMin.setForeground(new Color(0, 0, 0));
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if (n.contains(".")) return; // if it already contains a "." skip rest of this
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}
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processDigit(e.getActionCommand());
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});
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|
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}
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btnMul.setFont(new Font("Tahoma", Font.PLAIN, 29));
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});
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btnMul.addActionListener(new ActionListener() {
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buttonPanel.add(btnDot);
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public void actionPerformed(ActionEvent e) {
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setOperator(e.getActionCommand());
|
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JButton btnMin = new JButton("-");
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btnDiv.setForeground(new Color(0, 0, 0));
|
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btnMin.addActionListener(new ActionListener() {
|
btnMul.setForeground(new Color(30, 144, 255));
|
||||||
public void actionPerformed(ActionEvent e) {
|
btnPlus.setForeground(new Color(0, 0, 0));
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||||||
setOperator(e.getActionCommand());
|
btnMin.setForeground(new Color(0, 0, 0));
|
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}
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}
|
||||||
});
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});
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buttonPanel.add(btnMin);
|
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||||||
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btnMin.setFont(new Font("Tahoma", Font.PLAIN, 29));
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||||||
JButton btnEq = new JButton("=");
|
btnMin.addActionListener(new ActionListener() {
|
||||||
btnEq.addActionListener(new ActionListener() {
|
public void actionPerformed(ActionEvent e) {
|
||||||
public void actionPerformed(ActionEvent e) {
|
setOperator(e.getActionCommand());
|
||||||
operand2 = display.getText();
|
btnDiv.setForeground(new Color(0, 0, 0));
|
||||||
double o1 = Double.parseDouble(operand1);
|
btnMul.setForeground(new Color(0, 0, 0));
|
||||||
double o2 = Double.parseDouble(operand2);
|
btnPlus.setForeground(new Color(0, 0, 0));
|
||||||
|
btnMin.setForeground(new Color(30, 144, 255));
|
||||||
if (operator == "+") {
|
}
|
||||||
result = o1+o2;
|
});
|
||||||
} else if (operator == "-") {
|
|
||||||
result = o1-o2;
|
btnPlus.setFont(new Font("Tahoma", Font.PLAIN, 29));
|
||||||
} else if (operator == "*") {
|
btnPlus.addActionListener(new ActionListener() {
|
||||||
result = o1*o2;
|
public void actionPerformed(ActionEvent e) {
|
||||||
} else if (operator == "/") {
|
setOperator(e.getActionCommand());
|
||||||
result = o1/o2;
|
btnDiv.setForeground(new Color(0, 0, 0));
|
||||||
}
|
btnMul.setForeground(new Color(0, 0, 0));
|
||||||
operator = "";
|
btnPlus.setForeground(new Color(30, 144, 255));
|
||||||
operand1 = "";
|
btnMin.setForeground(new Color(0, 0, 0));
|
||||||
operand2 = "";
|
}
|
||||||
resultVisible = true;
|
});
|
||||||
display.setText(""+result);
|
|
||||||
}
|
JButton btnEq = new JButton("=");
|
||||||
});
|
btnEq.setFont(new Font("Tahoma", Font.PLAIN, 29));
|
||||||
buttonPanel.add(btnEq);
|
btnEq.addActionListener(new ActionListener() {
|
||||||
|
public void actionPerformed(ActionEvent e) {
|
||||||
contentPane.setLayout(gl_contentPane);
|
operand2 = display.getText();
|
||||||
|
double o1 = Double.parseDouble(operand1);
|
||||||
}
|
double o2 = Double.parseDouble(operand2);
|
||||||
|
|
||||||
protected void clear() {
|
if (operator == "+") {
|
||||||
String tmp = display.getText();
|
result = o1+o2;
|
||||||
if (tmp.length()>1) // if there is more than 1 character
|
} else if (operator == "-") {
|
||||||
display.setText( tmp.substring(0, tmp.length()-1) );
|
result = o1-o2;
|
||||||
else // otherwise just make display empty
|
} else if (operator == "*") {
|
||||||
display.setText("");
|
result = o1*o2;
|
||||||
}
|
} else if (operator == "/") {
|
||||||
|
result = o1/o2;
|
||||||
protected void processDigit(String actionCommand) {
|
}
|
||||||
if (resultVisible == true) {
|
operator = "";
|
||||||
display.setText("");
|
operand1 = "";
|
||||||
resultVisible = false;
|
operand2 = "";
|
||||||
}
|
|
||||||
display.setText(display.getText() + actionCommand);
|
btnDiv.setForeground(new Color(0, 0, 0));
|
||||||
|
btnMul.setForeground(new Color(0, 0, 0));
|
||||||
}
|
btnPlus.setForeground(new Color(0, 0, 0));
|
||||||
protected void setOperator(String actionCommand) {
|
btnMin.setForeground(new Color(0, 0, 0));
|
||||||
operand1 = display.getText();
|
|
||||||
operator = actionCommand;
|
resultVisible = true;
|
||||||
display.setText("");
|
display.setText(""+result);
|
||||||
}
|
}
|
||||||
}
|
});
|
||||||
|
|
||||||
|
buttonPanel.add(btn7);
|
||||||
|
buttonPanel.add(btn8);
|
||||||
|
buttonPanel.add(btn9);
|
||||||
|
buttonPanel.add(btnDiv);
|
||||||
|
buttonPanel.add(btnErase);
|
||||||
|
|
||||||
|
buttonPanel.add(btn4);
|
||||||
|
buttonPanel.add(btn5);
|
||||||
|
buttonPanel.add(btn6);
|
||||||
|
buttonPanel.add(btnMul);
|
||||||
|
buttonPanel.add(btnClear);
|
||||||
|
|
||||||
|
buttonPanel.add(btn1);
|
||||||
|
buttonPanel.add(btn2);
|
||||||
|
buttonPanel.add(btn3);
|
||||||
|
buttonPanel.add(btnPlus);
|
||||||
|
buttonPanel.add(empty);
|
||||||
|
|
||||||
|
buttonPanel.add(btnPlusMin);
|
||||||
|
buttonPanel.add(btn0);
|
||||||
|
buttonPanel.add(btnDot);
|
||||||
|
buttonPanel.add(btnMin);
|
||||||
|
buttonPanel.add(btnEq);
|
||||||
|
|
||||||
|
contentPane.setLayout(gl_contentPane);
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
protected void clear() {
|
||||||
|
String tmp = display.getText();
|
||||||
|
if (tmp.length()>1) // if there is more than 1 character
|
||||||
|
display.setText( tmp.substring(0, tmp.length()-1) );
|
||||||
|
else // otherwise just make display empty
|
||||||
|
display.setText("");
|
||||||
|
}
|
||||||
|
|
||||||
|
protected void processDigit(String actionCommand) {
|
||||||
|
if (resultVisible == true) {
|
||||||
|
display.setText("");
|
||||||
|
resultVisible = false;
|
||||||
|
}
|
||||||
|
display.setText(display.getText() + actionCommand);
|
||||||
|
|
||||||
|
}
|
||||||
|
protected void setOperator(String actionCommand) {
|
||||||
|
operand1 = display.getText();
|
||||||
|
operator = actionCommand;
|
||||||
|
display.setText("");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|||||||
Reference in New Issue
Block a user