帮忙调试下 我调试的时候 老出现 expected 我用没发现有问题！

[Limuzi]

class ClockPanel extends JPanel{
private int minuter=0;
public void paintComponent(Graphics g){
super.paintComponent(g);
g.drawOval(0,0,100,100);
double hourAngle=2*Math.PI*(minuter-3*60)/(12*60);
double minuterAngle=2*Math.PI*(minuter-15)/60;
g.drawLine(50,50,50+(int)(30*Math.cos(hourAngle)),50+(int)(30*Math.sin(hourAngle)));
g.drawLine(50,50,50+(int)(45*Math.cos(minuterAngle)),50+(int)(45*Math.sin(minuterAngle)));
}
public void setTime(int h,int m){
minuter=h*60+m;
repaint();
}
}

[Limuzi]

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class Test extends JFrame implements DocumentListener
{
private JTextField hourField;
private JTextField minuterField;
private ClockPanel clock;
public Test(){
setTitle("Test");
setSize(300,200);
addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent e){
System.exit(0);}});}
Container contentPane =getContentPane();
JPanel p=new JPanel();
hourField =new JTextField("12",3);
p.add(hourField);
hourField.getDocument().addDocumentListener(this);
minuterField=new JTextField("00",3);
p.add(minuterField);
minuterField.getDocument().addDocumentListener(this);
contentPane.add(p,"South");
clock=new ClockPanel();
contentPane.add(clock,BorderLayout.CENTER);
public void insertUpdate(DocumentEvent e){
setClock();
}
public void removeUpdate(DocumentEvent e){
setClock();
}
public void changedUpdate(DocumentEvent e){
}
public void setClock(){
int hours=Integer.parseInt(hourField.getText().trim());
int minuters=Integer.parseInt(minuterField.getText().trim());
clock.setTime(hours,minuters);
}
}

class ClockPanel extends JPanel{
private int minuter=0;
public void paintComponent(Graphics g){
super.paintComponent(g);
g.drawOval(0,0,100,100);
double hourAngle=2*Math.PI*(minuter-3*60)/(12*60);
double minuterAngle=2*Math.PI*(minuter-15)/60;
g.drawLine(50,50,50+(int)(30*Math.cos(hourAngle)),50+(int)(30*Math.sin(hourAngle)));
g.drawLine(50,50,50+(int)(45*Math.cos(minuterAngle)),50+(int)(45*Math.sin(minuterAngle)));
}
public void setTime(int h,int m){
minuter=h*60+m;
repaint();
}
}

public class ClockTest{
public static void mian(String[] args){
JFrame f=new Test();
f.show();
}
}

[vgvg]

类中的初始话要一步完成.

改了一下.


import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
class Test extends JFrame implements DocumentListener
{
private JTextField hourField ;
private JTextField minuterField;
private ClockPanel clock;
public Test(){
Container contentPane =getContentPane();
JPanel p=new JPanel();
hourField =new JTextField("12",3)
p.add(hourField);
hourField.getDocument().addDocumentListener(this);
minuterField=new JTextField("00",3);
p.add(minuterField);
minuterField.getDocument().addDocumentListener(this);
contentPane.add(p,"South");
clock=new ClockPanel();
contentPane.add(clock,BorderLayout.CENTER);
setTitle("Test");
setSize(300,200);
addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent e){
System.exit(0);}});}

public void insertUpdate(DocumentEvent e){
setClock();
}
public void removeUpdate(DocumentEvent e){
setClock();
}
public void changedUpdate(DocumentEvent e){
}
public void setClock(){
int hours=Integer.parseInt(hourField.getText().trim());
int minuters=Integer.parseInt(minuterField.getText().trim());
clock.setTime(hours,minuters);
}
}




class ClockPanel extends JPanel{
private int minuter=0;
public void paintComponent(Graphics g){
super.paintComponent(g);
g.drawOval(0,0,100,100);
double hourAngle=2*Math.PI*(minuter-3*60)/(12*60);
double minuterAngle=2*Math.PI*(minuter-15)/60;
g.drawLine(50,50,50+(int)(30*Math.cos(hourAngle)),50+(int)(30*Math.sin(hourAngle)));
g.drawLine(50,50,50+(int)(45*Math.cos(minuterAngle)),50+(int)(45*Math.sin(minuterAngle)));
}
public void setTime(int h,int m){
minuter=h*60+m;
repaint();
}
}


public class ClockTest{
public static void main(String[] args){
JFrame f=new Test();
f.show();
}
}