猜数游戏（GUI界面）

package guessGame; import java.awt.Color; import java.awt.Container; import java.awt.Dimension; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import javax.swing.BoxLayout; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JTextField; public class guessGame { private static JFrame jf; private static Container c; private static JPanel jp1 =new JPanel(); private static JPanel jp =new JPanel(); private static JLabel jlb =new JLabel(); private static JTextField jtf =new JTextField(); private static JButton jb =new JButton("重新开始"); private static JLabel jl =new JLabel("请输入你猜的数字",JLabel.CENTER); public static void main(String[] args) { setWindow(); setEvent(); } //设置GUI界面 public static void setWindow() { jf =new JFrame("猜数游戏"); c =jf.getContentPane(); c.setLayout(new BoxLayout(c,BoxLayout.Y_AXIS)); jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); jf.setSize(233, 288); jf.setLocationRelativeTo(null); jtf.setHorizontalAlignment(JTextField.CENTER); jtf.setSize(233,188); jl.setPreferredSize(new Dimension(233,68)); jp1.add(jlb); jp.add(jl); jp1.setBackground(Color.YELLOW); jlb.setText("猜字次数：0"); jp1.add(jb); c.add(jtf); c.add(jp1); c.add(jp); jf.setVisible(true); jf.setResizable(false); } //设置监听事件 public static void setEvent() { jtf.addKeyListener(new KeyListener() { int i = 0; int randomNumber =(int)(Math.random()*100+1); public void keyPressed(KeyEvent e) { int key =e.getKeyCode(); int guessNumber; if(key=='\n') { try { guessNumber =Integer.parseInt(jtf.getText()); if(guessNumber>100||guessNumber<=0) throw new Exception(); i++; jlb.setText("猜字次数："+i); jtf.setText(null); //比较猜的值和随机生成的值是否相同 if(randomNumber<guessNumber) jl.setText("输入的整数太大"); if(randomNumber>guessNumber) jl.setText("输入的整数太小"); if(randomNumber==guessNumber) { if(i<4) { jl.setText("猜对了！"); JOptionPane.showMessageDialog(null, "恭喜！"); } if(i>=4) { jl.setText("猜对了！"); JOptionPane.showMessageDialog(null,"继续努力！"); } } } catch(Exception e1) { jl.setText("请输入1~100以内的整数"); } } jb.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { i=0; jtf.setText(""); jlb.setText("猜字次数："+i); jl.setText("请输入你猜的数字"); randomNumber =(int)(Math.random()*100+1); }} ); } public void keyTyped(KeyEvent e) { } public void keyReleased(KeyEvent e) { } }); } }