java No enclosing instance错误解决办法

最新推荐文章于 2023-05-27 09:53:43 发布

转载最新推荐文章于 2023-05-27 09:53:43 发布

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原文链接：http://www.cnblogs.com/archurspace/p/3689903.html

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#java

将类设置成static 或者将该类写在public static void main(String[] args) {。。。}外面就行

package eluosi;

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;

import javax.swing.JFrame;
import javax.swing.JPanel;

public class eluosi {

public static void main(String[] args) {
// TODO Auto-generated method stub
//System.out.println("Hello EluoSiRect!\n");
JFrame f = new JFrame();
f.setSize(400, 300);
f.setLocationRelativeTo(null);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setContentPane(new Mypanel());
f.setVisible(true);
}

}

class Mypanel extends JPanel{
@Override
protected void paintComponent(Graphics g) {
// TODO Auto-generated method stub
super.paintComponent(g);
g.setColor(new Color(0xff0000));
//g.draw3DRect(10, 10, 30, 30, true);
g.setFont(new Font("黑体",Font.BOLD,32));
g.drawString("Hello", 50, 50);
}
}

转载于:https://www.cnblogs.com/archurspace/p/3689903.html