rcalculator.java

这个无限位计算器

/*
 * NewJFrame.java
 *
 * Created on 31 May 2005, 03:10
 */

//package rcalculator;
import java.math.BigDecimal;
/**
 *
 * @author  Greeceboy
 */
public class Rcalculator extends javax.swing.JFrame {
    
    String s="";
    String preNo="";
    String nextNo="";
    int markS=0;
    boolean markE=false;
    
    /** Creates new form NewJFrame */
    public Rcalculator() {
        initComponents();
    }
    
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc=" Generated Code ">//GEN-BEGIN:initComponents
    private void initComponents() {
        yellowUnder = new javax.swing.JPanel();
        greenPanel = new javax.swing.JPanel();
        calBut7 = new javax.swing.JButton();
        calBut4 = new javax.swing.JButton();
        calBut1 = new javax.swing.JButton();
        calBut0 = new javax.swing.JButton();
        calHelp = new javax.swing.JButton();
        bluePanel = new javax.swing.JPanel();
        calBut8 = new javax.swing.JButton();
        calBut5 = new javax.swing.JButton();
        calBut2 = new javax.swing.JButton();
        butDot = new javax.swing.JButton();
        butN = new javax.swing.JButton();
        magentPanel = new javax.swing.JPanel();
        calBut9 = new javax.swing.JButton();
        calBut6 = new javax.swing.JButton();
        calBut3 = new javax.swing.JButton();
        butSquare = new javax.swing.JButton();
        butC = new javax.swing.JButton();
        redPanel = new javax.swing.JPanel();
        butAddition = new javax.swing.JButton();
        butSubtraction = new javax.swing.JButton();
        butMultiplication = new javax.swing.JButton();
        butDivision = new javax.swing.JButton();
        butEqual = new javax.swing.JButton();
        pinkAbove = new javax.swing.JPanel();
        textDisplay = new javax.swing.JTextField();

        getContentPane().setLayout(null);

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("Greeceboy's Calculator");
        setBackground(new java.awt.Color(255, 51, 255));
        setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));
        setFont(new java.awt.Font("Comic Sans MS", 1, 14));
        setMaximizedBounds(new java.awt.Rectangle(400, 350, 407, 252));
        setName("<Different Values>");
        setResizable(false);
        yellowUnder.setLayout(new java.awt.FlowLayout(java.awt.FlowLayout.LEFT, 0, 0));

        yellowUnder.setBackground(new java.awt.Color(255, 204, 0));
        yellowUnder.setMaximumSize(new java.awt.Dimension(400, 164));
        yellowUnder.setMinimumSize(new java.awt.Dimension(400, 164));
        yellowUnder.setPreferredSize(new java.awt.Dimension(400, 164));
        yellowUnder.setRequestFocusEnabled(false);
        greenPanel.setBackground(new java.awt.Color(255, 51, 255));
        greenPanel.setMaximumSize(new java.awt.Dimension(100, 164));
        greenPanel.setMinimumSize(new java.awt.Dimension(100, 164));
        greenPanel.setName("<Different Values>");
        greenPanel.setPreferredSize(new java.awt.Dimension(100, 164));
        calBut7.setFont(new java.awt.Font("Comic Sans MS", 0, 18));
        calBut7.setForeground(new java.awt.Color(204, 0, 204));
        calBut7.setText("7");
        calBut7.setBorderPainted(false);
        calBut7.setIconTextGap(0);
        calBut7.setMargin(new java.awt.Insets(0, 0, 0, 0));
        calBut7.setMaximumSize(new java.awt.Dimension(78, 25));
        calBut7.setMinimumSize(new java.awt.Dimension(78, 25));
        calBut7.setPreferredSize(new java.awt.Dimension(78, 25));
        calBut7.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                calBut7ActionPerformed(evt);
            }
        });

        greenPanel.add(calBut7);

        calBut4.setFont(new java.awt.Font("Comic Sans MS", 0, 18));
        calBut4.setForeground(new java.awt.Color(204, 0, 204));
        calBut4.setText("4");
        calBut4.setBorder(null);
        calBut4.setBorderPainted(false);
        calBut4.setMaximumSize(new java.awt.Dimension(78, 25));
        calBut4.setMinimumSize(new java.awt.Dimension(78, 25));
        calBut4.setPreferredSize(new java.awt.Dimension(78, 25));
        calBut4.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                calBut4ActionPerformed(evt);
            }
        });

        greenPanel.add(calBut4);

        calBut1.setFont(new java.awt.Font("Comic Sans MS", 0, 18));
        calBut1.setForeground(new java.awt.Color(204, 0, 204));
        calBut1.setText("1");
        calBut1.setBorder(null);
        calBut1.setBorderPainted(false);
        calBut1.setMaximumSize(new java.awt.Dimension(78, 25));
        calBut1.setMinimumSize(new java.awt.Dimension(78, 25));
        calBut1.setPreferredSize(new java.awt.Dimension(78, 25));
        calBut1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                calBut1ActionPerformed(evt);
            }
        });

        greenPanel.add(calBut1);

        calBut0.setFont(new java.awt.Font("Comic Sans MS", 0, 18));
        calBut0.setForeground(new java.awt.Color(204, 0, 204));
        calBut0.setText("0");
        calBut0.setBorder(null);
        calBut0.setBorderPainted(false);
        calBut0.setMaximumSize(new java.awt.Dimension(78, 25));
        calBut0.setMinimumSize(new java.awt.Dimension(78, 25));
        calBut0.setPreferredSize(new java.awt.Dimension(78, 25));
        calBut0.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                calBut0ActionPerformed(evt);
            }
        });

        greenPanel.add(calBut0);

        calHelp.setFont(new java.awt.Font("Comic Sans MS", 0, 18));
        calHelp.setForeground(new java.awt.Color(204, 0, 204));
        calHelp.setText("Help");
        calHelp.setBorder(null);
        calHelp.setBorderPainted(false);
        calHelp.setMaximumSize(new java.awt.Dimension(78, 25));
        calHelp.setMinimumSize(new java.awt.Dimension(78, 25));
        calHelp.setPreferredSize(new java.awt.Dimension(78, 25));
        calHelp.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                calHelpActionPerformed(evt);
            }
        });

        greenPanel.add(calHelp);

        yellowUnder.add(greenPanel);

        bluePanel.setBackground(new java.awt.Color(255, 51, 255));
        bluePanel.setMaximumSize(new java.awt.Dimension(100, 164));
        bluePanel.setMinimumSize(new java.awt.Dimension(100, 164));
        bluePanel.setName("<Different Values>");
        bluePanel.setPreferredSize(new java.awt.Dimension(100, 164));
        calBut8.setFont(new java.awt.Font("Comic Sans MS", 0, 18));
        calBut8.setForeground(new java.awt.Color(204, 0, 204));
        calBut8.setText("8");
        calBut8.setBorder(null);
        calBut8.setBorderPainted(false);
        calBut8.setMaximumSize(new java.awt.Dimension(78, 25));
        calBut8.setMinimumSize(new java.awt.Dimension(78, 25));
        calBut8.setPreferredSize(new java.awt.Dimension(78, 25));
        calBut8.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                calBut8ActionPerformed(evt);
            }
        });

        bluePanel.add(calBut8);

        calBut5.setFont(new java.awt.Font("Comic Sans MS", 0, 18));
        calBut5.setForeground(new java.awt.Color(204, 0, 204));
        calBut5.setText("5");
        calBut5.setBorder(null);
        calBut5.setBorderPainted(false);
        calBut5.setMaximumSize(new java.awt.Dimension(78, 25));
        calBut5.setMinimumSize(new java.awt.Dimension(78, 25));
        calBut5.setPreferredSize(new java.awt.Dimension(78, 25));
        calBut5.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                calBut5ActionPerformed(evt);
            }
        });

        bluePanel.add(calBut5);

        calBut2.setFont(new java.awt.Font("Comic Sans MS", 0, 18));
        calBut2.setForeground(new java.awt.Color(204, 0, 204));
        calBut2.setText("2");
        calBut2.setBorder(null);
        calBut2.setBorderPainted(false);
        calBut2.setMaximumSize(new java.awt.Dimension(78, 25));
        calBut2.setMinimumSize(new java.awt.Dimension(78, 25));
        calBut2.setPreferredSize(new java.awt.Dimension(78, 25));
        calBut2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                calBut2ActionPerformed(evt);
            }
        });

        bluePanel.add(calBut2);

        butDot.setFont(new java.awt.Font("Comic Sans MS", 0, 18));
        butDot.setForeground(new java.awt.Color(204, 0, 204));
        butDot.setText(".");
        butDot.setBorder(null);
        butDot.setBorderPainted(false);
        butDot.setMaximumSize(new java.awt.Dimension(78, 25));
        butDot.setMinimumSize(new java.awt.Dimension(78, 25));
        butDot.setPreferredSize(new java.awt.Dimension(78, 25));
        butDot.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                butDotActionPerformed(evt);
            }
        });

        bluePanel.add(butDot);

        butN.setFont(new java.awt.Font("Comic Sans MS", 0, 18));
        butN.setForeground(new java.awt.Color(204, 0, 204));
        butN.setText("n!");
        butN.setBorder(null);
        butN.setBorderPainted(false);
        butN.setMaximumSize(new java.awt.Dimension(78, 25));
        butN.setMinimumSize(new java.awt.Dimension(78, 25));
        butN.setPreferredSize(new java.awt.Dimension(78, 25));
        butN.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                butNActionPerformed(evt);
            }
        });

        bluePanel.add(butN);

        yellowUnder.add(bluePanel);

        magentPanel.setBackground(new java.awt.Color(255, 51, 255));
        magentPanel.setMaximumSize(new java.awt.Dimension(100, 164));
        magentPanel.setMinimumSize(new java.awt.Dimension(100, 164));
        magentPanel.setName("<Different Values>");
        magentPanel.setPreferredSize(new java.awt.Dimension(100, 164));
        calBut9.setFont(new java.awt.Font("Comic Sans MS", 0, 18));
        calBut9.setForeground(new java.awt.Color(204, 0, 204));
        calBut9.setText("9");
        calBut9.setBorder(null);
        calBut9.setBorderPainted(false);
        calBut9.setMaximumSize(new java.awt.Dimension(78, 25));
        calBut9.setMinimumSize(new java.awt.Dimension(78, 25));
        calBut9.setPreferredSize(new java.awt.Dimension(78, 25));
        calBut9.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                calBut9ActionPerformed(evt);
            }
        });

        magentPanel.add(calBut9);

        calBut6.setFont(new java.awt.Font("Comic Sans MS", 0, 18));
        calBut6.setForeground(new java.awt.Color(204, 0, 204));
        calBut6.setText("6");
        calBut6.setBorder(null);
        calBut6.setBorderPainted(false);