计算器---如何设置监听器java.txt

计算器---如何设置监听器java

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class JSQ 
{ 
    static JFrame f=new JFrame("银河二号超级变态计算器");
    static JButton b1=new JButton("1");
    static JButton b2=new JButton("2");
    static JButton b3=new JButton("3");
    static JButton b4=new JButton("4");
    static JButton b5=new JButton("5");
    static JButton b6=new JButton("6");
    static JButton b7=new JButton("7");
    static JButton b8=new JButton("8");
    static JButton b9=new JButton("9");
    static JButton b0=new JButton("0");
    static JButton bx=new JButton(".");
    static JButton bjia=new JButton("+");
    static JButton bjian=new JButton("-");
    static JButton bcheng=new JButton("X");
    static JButton bchu=new JButton("/");
    static JButton bCE=new JButton("CE");
    static JButton bC=new JButton("C");
    static JButton bjue=new JButton("+/-");
    static JButton bbai=new JButton("%");
    static JButton by=new JButton("x^y");
    static JButton by2=new JButton("x^2");
    static JButton by3=new JButton("x^3");
    static JButton bxx=new JButton("x!");
    static JButton b1x=new JButton("1/x");
    static JButton bk2=new JButton("K2");
    static JButton bxxx=new JButton("??");
    static JButton bdeng=new JButton("=");
    static JPanel p1=new JPanel();
    static JPanel p2=new JPanel();
    static JPanel p3=new JPanel();
    static JPanel p4=new JPanel();
    static JPanel p5=new JPanel();
    static JPanel p6=new JPanel();
    static JPanel p7=new JPanel();
    static JPanel p8=new JPanel();
    static JTextField text=new JTextField(10);
    static StringBuffer te=new StringBuffer();
    static double tem1=0,tem2=0;
    static int x=0,z=0;
    public static void main(String []args)
    {
    	//b1.setForeground(Color.red) ;
    	//b1.setBackground(Color.blue);
       text.setHorizontalAlignment(JTextField.RIGHT);
        bb myb1=new bb();
            b1.addActionListener(myb1);
            b2.addActionListener(myb1);
            b3.addActionListener(myb1);
            b4.addActionListener(myb1);
            b5.addActionListener(myb1);
            b6.addActionListener(myb1);
            b7.addActionListener(myb1);
            b8.addActionListener(myb1);
            b9.addActionListener(myb1);
            b0.addActionListener(myb1);
            bx.addActionListener(myb1);
         bby myby=new bby();   
            bjia.addActionListener(myby);
            bjian.addActionListener(myby);
            bcheng.addActionListener(myby);
            bchu.addActionListener(myby);
            bC.addActionListener(myby);
            bCE.addActionListener(myby);
            bbai.addActionListener(myby);
            bjue.addActionListener(myby);
            bk2.addActionListener(myby);
            bxxx.addActionListener(myby);
            by.addActionListener(myby);
            by2.addActionListener(myby);
            by3.addActionListener(myby);
            bxx.addActionListener(myby);
            b1x.addActionListener(myby);
         bdeng mydeng=new bdeng();
            bdeng.addActionListener(mydeng);
        f.getContentPane().setLayout(new FlowLayout());
        f.getContentPane().add(p6);
        p1.setLayout(new GridLayout(3,3));
            p1.add(b1);p1.add(b2);p1.add(b3);
            p1.add(b4);p1.add(b5);p1.add(b6);
            p1.add(b7);p1.add(b8);p1.add(b9);
        p2.setLayout(new BorderLayout());
            p2.add(b0,BorderLayout.WEST);
            p2.add(bdeng,BorderLayout.CENTER);
        p3.setLayout(new BorderLayout());
            p3.add(p1,BorderLayout.CENTER);
            p3.add(p2,BorderLayout.SOUTH);
        p4.setLayout(new GridLayout(4,2));
            p4.add(bC);
            p4.add(bCE);
            p4.add(bjia);
            p4.add(bjian);
            p4.add(bcheng);
            p4.add(bchu);
            p4.add(bx);
            p4.add(bjue);
        p5.setLayout(new BorderLayout());
            p5.add(p3,BorderLayout.WEST);
            p5.add(p4,BorderLayout.CENTER);
            p5.add(p7,BorderLayout.EAST);
        p6.setLayout(new BorderLayout());
            p6.add(text,BorderLayout.NORTH);
            p6.add(p5,BorderLayout.SOUTH);
        p7.setLayout(new GridLayout(4,2));
            p7.add(bbai);
            p7.add(by);
            p7.add(by2);
            p7.add(by3);
            p7.add(bxx);
            p7.add(b1x);
            p7.add(bk2);
            p7.add(bxxx);
        f.pack();
        f.setVisible(true); 
        f.addWindowListener(new WindowAdapter()
        {
            public void windowClosing(WindowEvent e)
            {
                System.exit(0);
            }
        });
    }
   
    static class bb implements ActionListener
    {
        public void actionPerformed(ActionEvent e)
        {
        	if(e.getSource()==b1)
                {
                    te.append("1");
                    text.setText(te.toString());
                }
                if(e.getSource()==b2)
                {
                    te.append("2");
                    text.setText(te.toString());
                }
                if(e.getSource()==b3)
                {
                    te.append("3");
                    text.setText(te.toString());
                }
                if(e.getSource()==b4)
                {
                    te.append("4");
                    text.setText(te.toString());
                }
                if(e.getSource()==b5)
                {
                    te.append("5");
                    text.setText(te.toString());
                }
                if(e.getSource()==b6)
                {
                    te.append("6");
                    text.setText(te.toString());
                }
                if(e.getSource()==b7)
                {
                    te.append("7");
                    text.setText(te.toString());
                }
                if(e.getSource()==b8)
                {
                    te.append("8");
                    text.setText(te.toString());
                }
                if(e.getSource()==b9)
                {
                    te.append("9");
                    text.setText(te.toString());
                }
                if(e.getSource()==b0)
                {
                    te.append("0");
                    text.setText(te.toString());
                }
                if(e.getSource()==bx)
                {
                    int u=-1;
                    if (u!=(te.indexOf(".")))
                    {
                        text.setText(te.toString());
                    }
                    else
                    {
                        te.append(".");
                        text.setText(te.toString());
                    }
                }
        }
    }
   static class bby implements ActionListener
    {
        static double bb(int m)
        {
            if(m==1)
            {
                return 1;
            }
            else
            {
                return m*(bb(m-1));
            }
        }
        public void actionPerformed(ActionEvent e)
        {
            tem1=(Double.valueOf(text.getText()).doubleValue());
            te.delete(0,te.length());
            System.out.println(te);
            System.out.println(tem1);
            if(e.getSource()==bjia)
                {
                    x=1;//+
                }
             if(e.getSource()==bjian)
                {
                    x=2;//-
                }
             if(e.getSource()==bcheng)
                {
                    x=3;//*
                }
             if(e.getSource()==bchu)
                {
                    x=4;//        /
                }
            if(e.getSource()==bC)
            {
                x=0;
                te.delete(0,te.length());
                text.setText("0");
                tem1=0;tem2=0;
            } 
            if(e.getSource()==bCE)
            {
                x=0;
                te.delete(0,te.length());
                text.setText("0");
                tem1=0;tem2=0;
            }
            if(e.getSource()==bbai)
            {
                tem1=tem1*0.01;
                te.append(""+tem1);
                text.setText(te.toString());
                te.delete(0,te.length());
            }
            if(e.getSource()==bjue)
            {
               tem1=tem1*-1;
               te.append(""+tem1);
               text.setText(te.toString());
               te.delete(0,te.length());
            }
            if(e.getSource()==by)
            {
               x=5;
            }
            if(e.getSource()==by2)
            {
               tem1=tem1*tem1;
               te.append(""+tem1);
               text.setText(te.toString());
               te.delete(0,te.length());
            }
             if(e.getSource()==by3)
            {
               tem1=tem1*tem1*tem1;
               te.append(""+tem1);
               text.setText(te.toString());
               te.delete(0,te.length());
            }
            if(e.getSource()==b1x)
            {
               tem1=1/tem1; 
               te.append(""+tem1);
               text.setText(te.toString());
               te.delete(0,te.length());
            }
            if(e.getSource()==bk2)
            {
                if(tem1==0)
                {;}
                else
                {
                    tem1=(Math.sqrt(tem1));
                }
                te.append(""+tem1);
                text.setText(te.toString());
                te.delete(0,te.length());
            }
           if(e.getSource()==bxx)
            {
                if(tem1==0)
                    {tem1=0;}
                else
                {
                    int r=(int)tem1;
                    tem1=bb(r);
                }
                te.append(""+tem1);
                text.setText(te.toString());
                te.delete(0,te.length());
            }
            if(e.getSource()==bxxx)
            {
               
            }
       }
    }
   static class bdeng implements ActionListener
    {
        public void actionPerformed(ActionEvent e)
        {
            //等号的监听器
            tem2=(Double.valueOf(text.getText()).doubleValue());
            te.delete(0,te.length());
            if(x==0)
            {
                tem1=(Double.valueOf(text.getText()).doubleValue());
            }
            if(x==1)
            {
                tem1=tem1+tem2;
            }
            if(x==2)
            {
                tem1=tem1-tem2;
            }
            if(x==3)
            {
                tem1=tem1*tem2;
            }
            if(x==5)
            {
                double r=tem1;
                for(int i=1;i<(int)tem2;i++)
                {
                    tem1=tem1*r;
                }
           }
            if(x==4)
            {
                if(tem1==0)
                {
                    ;
                }
                else
                {
                    tem1=tem1/tem2;
                }
            }
            te.append(""+tem1);
            text.setText(te.toString());
            te.delete(0,te.length());
            x=0;
        }
    }
}