java猜数字源代码

import javax.swing.event.*;

import java.awt.*;

import java.awt.event.*;

class JListener implements ActionListener,KeyListener

{

JTextField textfieldx;

JTextArea textareax;

JPanel panelx;

JButton buttonx;

int a[]=new int[4];

int b[]=new int[4];

int cnt=1;

public void actionPerformed(ActionEvent e)

{

String s=textfieldx.getText();

int j;

if(s.length()==4)

{

for (j=0;j<4;j++)

{

if(s.charAt(j)<'0'||s.charAt(j)>'9')

{

textfieldx.setText("");textfieldx.requestFocus(true);break;

}

else

{

a[j]=Integer.parseInt(s.charAt(j)+"");

}

}

if(j==4)

{

judgement();

}

}

else

{

textfieldx.setText("");

textfieldx.requestFocus(true);

}

}

void reset()

{

int c[]=new int[10];

for (int i = 0; i<10; i++)

{

c[i]=i;

}

for(int i=0;i<4;)

{

int x=(int)(Math.random()*10);

if(c[x]<10)

{

b[i]=c[x];c[x]=10;i++;

}

}

}

void judgement()

{

int num_a=0;

int num_b=0;

for (int i = 0; i<4; i++)

for (int j = 0; j<4; j++)

{

if(a[i]==b[j])

if(i==j)num_a++;

else num_b++;

}

if(num_a==4)

{

JOptionPane.showMessageDialog(panelx,"YOU WIN");

textareax.setText("");

textfieldx.setText("");

textfieldx.requestFocus();

cnt=1;

}

else

{

textareax.setText(textareax.getText()+"第"+cnt+"次 : "+textfieldx.getText()+" --- "+num_a+" A "+num_b+" B "+"\

");cnt++;

textfieldx.setText("");

textfieldx.requestFocus(true);

if(cnt==8)

{

JOptionPane.showMessageDialog(panelx,"答案："+b[0]+b[1]+b[2]+b[3]);

textareax.setText("");

textfieldx.setText("");

textfieldx.requestFocus();

cnt=1;

/*textfieldx.setText("答案："+b[0]+b[1]+b[2]+b[3]);

textfieldx.setEditable(false);

buttonx.requestFocus(true);

buttonx.removeActionListener(this);*/

}

}

}

public void keyTyped(KeyEvent e)

{

}

public void keyPressed(KeyEvent e)

{

}

public void keyReleased(KeyEvent e)

{

if(e.getKeyCode()==KeyEvent.VK_ENTER)

buttonx.doClick();

}

}

class M

{

public static void main(String[] args)

{

JFrame frame=new JFrame();

JPanel panel=new JPanel();

JLabel label=new JLabel("请输入4位数字：");

JTextField textfield=new JTextField();

JButton button=new JButton("猜");

JTextArea textarea=new JTextArea();

JListener listener=new JListener();

panel.setLayout(null);

label.setBounds(100,50,150,50);

textfield.setBounds(100,100,150,20);

button.setBounds(300,100,100,20);

textarea.setBounds(100,200,300,200);

listener.textfieldx=textfield;

listener.textareax=textarea;

listener.buttonx=button;

listener.panelx=panel;

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

listener.reset();

button.addA

ctionListener(listener);

textfield.addKeyListener(listener);

panel.add(label);

panel.add(textarea);

panel.add(textfield);

panel.add(button);

frame.add(panel);

frame.setSize(500,500);

frame.setResizable(false);

frame.setVisible(true);

}

}