Java图像绘制

矫情吗；* 2021-11-06 00:36 301阅读 0赞

package cn.zh.game;
    
    import javax.swing.*;
    import java.awt.event.WindowAdapter;
    import java.awt.event.WindowEvent;
    
    public class MyGameFrame extends JFrame {
        public void launchFrame(){
            /**
             * 初始化窗口
             */
            this.setTitle("Game");
            this.setVisible(true);
            this.setSize(500,500);
            this.setLocation(30,30);
            this.addWindowFocusListener(new WindowAdapter() {
                @Override
                public void windowClosing(WindowEvent e) {
                    System.exit(0);
                }
    
            });
        }
    
        public static void main(String[] args) {
            MyGameFrame f=new MyGameFrame();
            f.launchFrame();
        }
    }

package cn.zh.game;
    
    import javax.swing.*;
    import java.awt.*;
    import java.awt.event.WindowAdapter;
    import java.awt.event.WindowEvent;
    
    public class MyGameFrame extends JFrame {
    
    
        @Override
        public void paint(Graphics g) {//自动被调用，g相当于画笔
            Color c = g.getColor();//用于保存原来的颜色
            Font f = g.getFont();
            //画直线
            g.drawLine(100,100,300,300);
            //画矩形
            g.drawRect(100,100,300,300);
            //画圆
            g.drawOval(100,100,300,300);
            //画一个填充矩形
            g.fillRect(100,100,40,40);
            //可以直接变画笔颜色
            g.setColor(Color.red);
            g.setFont(new Font("宋体",Font.BOLD,50));
            //画字符串
            g.drawString("我是谁？",200,200);
            //改回原来的颜色
            g.setColor(c);
            g.setFont(f);
    
        }
    
    
        public void launchFrame(){
            /**
             * 初始化窗口
             */
            this.setTitle("Game");
            this.setVisible(true);
            this.setSize(500,500);
            this.setLocation(30,30);
            this.addWindowFocusListener(new WindowAdapter() {
                @Override
                public void windowClosing(WindowEvent e) {
                    System.exit(0);
                }
    
            });
        }
    
        public static void main(String[] args) {
            MyGameFrame f=new MyGameFrame();
            f.launchFrame();
        }
    }

package cn.zh.game;
    
    import javax.imageio.ImageIO;
    import java.awt.*;
    import java.awt.image.BufferedImage;
    import java.io.IOException;
    import java.net.URL;
    
    public class GameUtil{
        //工具类最好将构造器私有化
        private GameUtil() {}
    
        /**
         * 返回指定路径文件的图片对象
         * @param path
         * @return
         */
        public static Image getImage(String path) {
            BufferedImage bi =null;
            try {
                URL u= GameUtil.class.getClassLoader().getResource(path);
                bi= ImageIO.read(u);
            } catch (IOException e) {
                e.printStackTrace();
            }
            return bi;
        }
    }