Question

下面的JAVA程序有什么问题？各位编程大哥帮帮忙

//MyPaint.java
package test.paint;
import javax.swing.*;
class MyPaint
{
public static final int WIDTH=600;
public static final int HEIGHT=400;
JFrame mainFrame;
public void showPaint()
{
mainFrame=new JFrame();
mainFrame.setTitle("");
mainFrame.setSize(WIDTH,HEIGHT);
mainFrame.setResizable(false);
mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
mainFrame.show();
}
}
//TextMyPaint.java
import test.paint.MyPaint;
public class TestMyPaint
{

public static void main(String[] args)
{
MyPaint testPaint =new MyPaint();
testPaint.showPaint();
}
}

Answer 1

如果你用的jre是1.5或以上版本时，
mainFrame.show(); 这句话就会报错
应该改成mainFrame.setVisible(true);