Question

帮我看看这个java小程序为什么画不出圆来

import java.awt.Color;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.*;

public class LiyuxTest1 extends Frame {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
new LiyuxTest1().launchFrame();

}

public void print(Graphics g) {
// TODO Auto-generated method stub
g.setColor(Color.BLUE);
g.fillOval(50, 50, 30, 30);
}
public void launchFrame() {
setBounds(400,400,300,300);
this.setVisible(true);
}

}

Answer 1

一般重写paint方法，而不是print方法。换成paint试试