Java绘图功能简介-Graphics

package hhxy.Test;
import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JFrame;

public class GraphicsFrame extends JFrame{
   public GraphicsFrame(){
	   super("Graphics范例");
	   setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	   setLocation(300, 250);
	   setSize(400,180);
	   setVisible(true);
   }
   public void paint(Graphics g){
	   g.setColor(Color.BLACK);
	   g.drawLine(0, 35, 100, 35);//画一条直线
	   
	   g.setColor(Color.RED);
	   g.drawRect(5, 40, 90, 55);//画空心矩形
	   g.fillRect(100, 40, 90, 55);//画实心矩形
	   
	   g.setColor(Color.ORANGE);
	   g.drawRoundRect(195, 40, 90, 55, 50, 50);//画空心圆角矩形
	   g.fillRoundRect(290, 40, 90, 55, 20, 20);//画实心圆角矩形
	   
	   g.setColor(Color.YELLOW);
	   g.draw3DRect(5, 100, 90, 55, true);//画空心3D矩形
	   g.fill3DRect(100, 100, 90, 55, true);//画实心3D矩形
	   g.setColor(Color.GREEN);
	   g.drawOval(195, 100, 90, 55);//画空心椭圆
	   g.fillOval(290, 100, 90, 55);//画实心椭圆
   }
   
	public static void main(String[] args) {
	new GraphicsFrame();
	}

}

结果：