怎么用java做动画

重写paint方法，来实现将自己定义的图片绘制到组件中，然后启动一个线程来控制paint方法。 示例： ××××××××××××××××××××××××××× import javax.swing.*; import java.awt.*;class MyPanel extends JPanel implements Runnable {private Image img;private int i=0;private int j=0;public MyPanel(){img=new ImageIcon("1.png").getImage();}public void paint(Graphics g){g.drawImage(img,0,0,60,104,i*60,j*104,i*60+60,j*104+104,this);}public void run(){while(true){while(j {while(i {try{Thread.sleep(300);}catch(Exception e){}this.repaint();i++;}j++;i=0;}i=0;j=0;}} }public class test extends JFrame {private MyPanel p;public test(){p=new MyPanel();this.add(p,BorderLayout.CENTER);this.setBounds(300,200,300,300);this.setTitle("人物行走图");new Thread(p).start();this.setVisible(true);this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);}public static void main(String args[]){new test();} }××××××××××××××××××××××× 将以上源码保存为：test.java，编译，然后下载下面的图片 将下载的图片改名为1.png" target="_blank"

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,然后将其和编译后生成的class文件放在同一文件夹下，然后运行就可以了·～～

java究竟怎么在JFrame上画东西？

java在JFrame上画东西，主要是使用paint方法，代码如下：

import java.awt.Color;

import java.awt.Graphics;

import javax.swing.JFrame;

import javax.swing.JPanel;

public class Draw extends JFrame{

JPanel  jPanel=new JPanel();

public Draw() {

jPanel.setBackground(Color.red);

add(jPanel); 

Drawation drawaction=new Drawation();//添加画图，把上面jpanel的设置给覆盖了；要是先添加画图再添加

add(drawaction);                    //jpanel则把画图覆盖了

}

public static void main(String[] args){

Draw draw=new Draw();

draw.setTitle("abc");

draw.setSize(300,300);

draw.setVisible(true);

draw.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

}

}

class Drawation extends JPanel{

public void paintComponent(Graphics g){

super.paintComponents(g);

g.drawString("agagh", 50, 45);

}

}

运行结果如下：

在Java游戏中让一个人物走动的代码是什么？

代码主要为以下：

package com.lovo.game.frame;

import java.awt.Graphics;

import java.awt.Image;

import java.awt.MediaTracker;

import javax.swing.JFrame;

import com.lovo.game.role.Fire;

import com.lovo.game.role.GameMap;

import com.lovo.game.role.ZhaoYun;

import com.lovo.game.util.TrackerInit;

public class GameStartFrame extends JFrame implements Runnable{

private Image memoryImage;

private Graphics memoryGraphics;

public static boolean isRun = true;

private static GameMap gameMap = new GameMap();

private ZhaoYun zy = new ZhaoYun();

private Fire fire = new Fire();

public GameStartFrame(){

this.setSize(900,700);

this.setVisible(true);

this.setDefaultCloseOperation(3);

//设置居中

this.setLocationRelativeTo(null);

//初始化双缓冲画布、画笔

this.memoryImage = this.createImage(900,700);

this.memoryGraphics = this.memoryImage.getGraphics();

//媒体追踪器

MediaTracker tracker = new MediaTracker(this);

TrackerInit.initImage(tracker);

//启动线程

Thread th = new Thread(this);

th.start();

}

public static void main(String[] args) {

GameStartFrame game = new GameStartFrame();

}

public void run() {

while(isRun){

this.flushFrame();

try {

Thread.sleep(20);

} catch (InterruptedException e) {

e.printStackTrace();

}

}

}

private void flushFrame(){

gameMap.drawMap(memoryGraphics);

zy.drawImage(memoryGraphics);

fire.drawImage(memoryGraphics);

//将双缓冲画布中的图片显示在窗体

this.getGraphics().drawImage(this.memoryImage,0,0,this);

}

}

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

package com.lovo.game.role;

import java.awt.Graphics;

import java.awt.Image;

public class GameMap {

public static Image mapImg;

public static int mapx;

public void drawMap(Graphics memoryGraphics){

mapx -=5;

if(mapx =-17100){

mapx = -17100;

}

memoryGraphics.drawImage(mapImg,mapx,0,null);

}

}

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

package com.lovo.game.role;

import java.awt.Graphics;

import java.awt.Image;

import com.lovo.game.util.MoveImageChange;

public class Fire {

public static Image[]fireImage;

private int x =100;

private int y =300;

private int width = 200;

private int height = 130;

private MoveImageChange moveChange = new MoveImageChange(3);

public void drawImage(Graphics memoryGraphics){

Image img = moveChange.imageChange(fireImage);

memoryGraphics.drawImage(img,this.x,this.y,this.width,this.height,null);

}

}

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

package com.lovo.game.util;

import java.awt.MediaTracker;

import com.lovo.game.role.Fire;

import com.lovo.game.role.GameMap;

import com.lovo.game.role.ZhaoYun;

public class TrackerInit {

public static void initImage(MediaTracker tracker){

//初始化地图图片

GameMap.mapImg = CutImage.getSingleImage("image/map.jpg", tracker);

//赵云

ZhaoYun.zyImage = CutImage.cutOneImage("image/boss/playSpear.png",18, 236, 134,tracker);

//火

Fire.fireImage = CutImage.cutOneImage("image/fireImg.png", 6, 283, 161,tracker);

try {

//0组的图片全部等待加载完毕后，在显示

tracker.waitForID(0);

} catch (InterruptedException e) {

e.printStackTrace();

}

}

}

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

package com.lovo.game.util;

import java.awt.Image;

import java.awt.MediaTracker;

import java.awt.image.CropImageFilter;

import java.awt.image.FilteredImageSource;

import java.awt.image.ImageProducer;

import javax.swing.ImageIcon;

import javax.swing.JFrame;

public class CutImage {

public static Image[][] cutManyImage(String filePath, int row, int col,

int imageWidth, int imageHight,MediaTracker tracker) {

Image[][] img = new Image[row][col];

ImageIcon imIcon = new ImageIcon(filePath);// 创建图像数组对象

Image imgTemp = imIcon.getImage();// 创建源图像

// 为源 图象获取ImageProducer源

ImageProducer sourceProducer = imgTemp.getSource();

for (int i = 0; i row; i++) {

for (int j = 0; j col; j++) {

// 创建图片分割图像对象,第一、二个参数为分割图像起始坐标。后两个参数为图像大小

CropImageFilter cropImg = new CropImageFilter(j * imageWidth, i * imageHight,imageWidth, imageHight);

ImageProducer imgProducer = new FilteredImageSource(sourceProducer, cropImg);

img[i][j] = new JFrame().createImage(imgProducer);

tracker.addImage(img[i][j], 0);

}

}

return img;

}

public static Image[] cutOneImage(String filePath,int col,

int imageWidth, int imageHight,MediaTracker tracker) {

Image[] img = new Image[col];

ImageIcon imIcon = new ImageIcon(filePath);// 创建图像数组对象

Image imgTemp = imIcon.getImage();// 创建源图像

// 为源 图象获取ImageProducer源

ImageProducer sourceProducer = imgTemp.getSource();

for (int j = 0; j col; j++) {

// 创建图片分割图像对象,第一、二个参数为分割图像起始坐标。后两个参数为图像大小

CropImageFilter cropImg = new CropImageFilter(j * imageWidth, 0,imageWidth, imageHight);

ImageProducer imgProducer = new FilteredImageSource(sourceProducer, cropImg);

img[j] = new JFrame().createImage(imgProducer);

tracker.addImage(img[j], 0);

}

return img;

}

public static Image getSingleImage(String imgPath,MediaTracker tracker){

Image img = new ImageIcon(imgPath).getImage();

tracker.addImage(img, 0);

return img;

}

}

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

package com.lovo.game.util;

import java.awt.Image;

public class MoveImageChange {

private int count;

private Image img;

private int frequency;

private int loopCount;

public MoveImageChange(int frequency){

this.frequency=frequency;

}

public MoveImageChange(int frequency,int count){

this.frequency=frequency;

this.count = count;

}

public Image imageChange(Image[] images){

if(img==null){//初始图片为第一张图片

img=images[0];

}

count++;

if(countfrequency){//当记数器大于频率时

count=0;

loopCount++;

if(loopCount = images.length){//图片下标越界时

loopCount=0;

}

img=images[loopCount];

}

return img;

}

public void setLoopCount(int loopCount){

this.loopCount = loopCount;

}

}

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

package com.lovo.game.role;

import java.awt.Graphics;

import java.awt.Image;

import com.lovo.game.util.MoveImageChange;

public class ZhaoYun {

public static Image[] zyImage;

private int x =600;

private int y =300;

private int width =200;

private int height =130;

private MoveImageChange moveChange = new MoveImageChange(3);

public void drawImage(Graphics memoryGraphics){

Image img = moveChange.imageChange(zyImage);

memoryGraphics.drawImage(img,this.x,this.y,this.width,this.height,null);

求java版画图程序的源代码

找到了，很久以前写的一个简单画图，呵呵～当时要求用AWT写，很难受。

package net.miqiang.gui;

import java.awt.BasicStroke;

import java.awt.BorderLayout;

import java.awt.Button;

import java.awt.Color;

import java.awt.Cursor;

import java.awt.Dimension;

import java.awt.Frame;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.GridLayout;

import java.awt.Label;

import java.awt.Panel;

import java.awt.RenderingHints;

import java.awt.Toolkit;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

import java.awt.event.MouseListener;

import java.awt.event.MouseMotionListener;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

import java.awt.image.BufferedImage;

/**

* 简单画图板程序

* 好久没用 AWT 了，写起来真别扭，如果用 swing 会很舒服，有空再改写吧。

*

* @author 米强

*

*/

public class TestMain extends Frame {

// 画板

private Palette palette = null;

// 显示当前颜色的面板

private Panel nonceColor = null;

// 画笔粗细

private Label drawWidth = null;

// 画笔端点的装饰

private Label drawCap = null;

// 选取颜色按钮的监听事件类

private ButtonColorAction buttonColorAction = null;

// 鼠标进入按钮后光标样式的监听事件类

private ButtonCursor buttonCursor = null;

// 画笔样式的监听事件

private ButtonStrokeAction buttonStrokeAction = null;

/**

* 构造方法

*

*/

public TestMain() {

// 设置标题栏文字

super("简易画图板");

// 构造一个画图板

palette = new Palette();

Panel pane = new Panel(new GridLayout(2, 1));

// 画笔颜色选择器

Panel paneColor = new Panel(new GridLayout(1, 13));

// 12 个颜色选择按钮

Button [] buttonColor = new Button[12];

Color [] color = {Color.black, Color.blue, Color.cyan, Color.darkGray, Color.gray, Color.green, Color.magenta, Color.orange, Color.pink, Color.red, Color.white, Color.yellow};

// 显示当前颜色的面板

nonceColor = new Panel();

nonceColor.setBackground(Color.black);

paneColor.add(nonceColor);

buttonColorAction = new ButtonColorAction();

buttonCursor = new ButtonCursor();

for(int i = 0; i buttonColor.length; i++){

buttonColor[i] = new Button();

buttonColor[i].setBackground(color[i]);

buttonColor[i].addActionListener(buttonColorAction);

buttonColor[i].addMouseListener(buttonCursor);

paneColor.add(buttonColor[i]);

}

pane.add(paneColor);

// 画笔颜色选择器

Panel paneStroke = new Panel(new GridLayout(1, 13));

// 控制画笔样式

buttonStrokeAction = new ButtonStrokeAction();

Button [] buttonStroke = new Button[11];

buttonStroke[0] = new Button("1");

buttonStroke[1] = new Button("3");

buttonStroke[2] = new Button("5");

buttonStroke[3] = new Button("7");

buttonStroke[4] = new Button("9");

buttonStroke[5] = new Button("11");

buttonStroke[6] = new Button("13");

buttonStroke[7] = new Button("15");

buttonStroke[8] = new Button("17");

buttonStroke[9] = new Button("■");

buttonStroke[10] = new Button("●");

drawWidth = new Label("3", Label.CENTER);

drawCap = new Label("●", Label.CENTER);

drawWidth.setBackground(Color.lightGray);

drawCap.setBackground(Color.lightGray);

paneStroke.add(drawWidth);

for(int i = 0; i buttonStroke.length; i++){

paneStroke.add(buttonStroke[i]);

buttonStroke[i].addMouseListener(buttonCursor);

buttonStroke[i].addActionListener(buttonStrokeAction);

if(i = 8){

buttonStroke[i].setName("width");

}else{

buttonStroke[i].setName("cap");

}

if(i == 8){

paneStroke.add(drawCap);

}

}

pane.add(paneStroke);

// 将画笔颜色选择器添加到窗体中

this.add(pane, BorderLayout.NORTH);

// 将画图板添加到窗体中

this.add(palette);

// 添加窗口监听，点击关闭按钮时退出程序

this.addWindowListener(new WindowAdapter() {

public void windowClosing(WindowEvent e) {

System.exit(0);

}

});

// 设置窗体 ICON 图标

this.setIconImage(Toolkit.getDefaultToolkit().createImage("images/palette.png"));

// 设置窗口的大小

this.setSize(new Dimension(400, 430));

// 设置窗口位置，处于屏幕正中央

this.setLocationRelativeTo(null);

// 显示窗口

this.setVisible(true);

}

/**

* 程序入口

*

* @param args

* 字符串数组参数

*/

public static void main(String[] args) {

new TestMain();

}

/**

* 选取颜色按钮的监听事件类

* @author 米强

*

*/

class ButtonColorAction implements ActionListener {

public void actionPerformed(ActionEvent e) {

Color color_temp = ((Button)e.getSource()).getBackground();

nonceColor.setBackground(color_temp);

palette.setColor(color_temp);

}

}

/**

* 鼠标进入按钮变换光标样式监听事件类

* @author 米强

*

*/

class ButtonCursor extends MouseAdapter {

public void mouseEntered(MouseEvent e) {

((Button)e.getSource()).setCursor(new Cursor(Cursor.HAND_CURSOR));

}

public void mouseExited(MouseEvent e) {

((Button)e.getSource()).setCursor(new Cursor(Cursor.DEFAULT_CURSOR));

}

}

/**

* 设置画笔的监听事件类

* @author 米强

*

*/

class ButtonStrokeAction implements ActionListener {

public void actionPerformed(ActionEvent e) {

Button button_temp = (Button) e.getSource();

String name = button_temp.getName();

if(name.equalsIgnoreCase("width")){

drawWidth.setText(button_temp.getLabel());

palette.setStroke(Float.parseFloat(button_temp.getLabel()));

}else if(name.equalsIgnoreCase("cap")){

drawCap.setText(button_temp.getLabel());

if(button_temp.getLabel().equals("■")){

palette.setStroke(BasicStroke.CAP_SQUARE);

}else if(button_temp.getLabel().equals("●")){

palette.setStroke(BasicStroke.CAP_ROUND);

}

}

}

}

}

/**

* 画板类

*

* @author 米强

*

*/

class Palette extends Panel implements MouseListener, MouseMotionListener {

// 鼠标 X 坐标的位置

private int mouseX = 0;

// 上一次 X 坐标位置

private int oldMouseX = 0;

// 鼠标 Y 坐标的位置

private int mouseY = 0;

// 上一次 Y 坐标位置

private int oldMouseY = 0;

// 画图颜色

private Color color = null;

// 画笔样式

private BasicStroke stroke = null;

// 缓存图形

private BufferedImage image = null;

/**

* 构造一个画板类

*

*/

public Palette() {

this.addMouseListener(this);

this.addMouseMotionListener(this);

// 默认黑色画笔

color = new Color(0, 0, 0);

// 设置默认画笔样式

stroke = new BasicStroke(3.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);

// 建立 1280 * 1024 的 RGB 缓存图象

image = new BufferedImage(1280, 1024, BufferedImage.TYPE_INT_RGB);

// 设置颜色

image.getGraphics().setColor(Color.white);

// 画背景

image.getGraphics().fillRect(0, 0, 1280, 1024);

}

/**

* 重写 paint 绘图方法

*/

public void paint(Graphics g) {

super.paint(g);

// 转换为 Graphics2D

Graphics2D g2d = (Graphics2D) g;

// 获取缓存图形 Graphics2D

Graphics2D bg = image.createGraphics();

// 图形抗锯齿

bg.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

// 设置绘图颜色

bg.setColor(color);

// 设置画笔样式

bg.setStroke(stroke);

// 画线，从上一个点到新的点

bg.drawLine(oldMouseX, oldMouseY, mouseX, mouseY);

// 将缓存中的图形画到画板上

g2d.drawImage(image, 0, 0, this);

}

/**

* 重写 update 方法

*/

public void update(Graphics g) {

this.paint(g);

}

/**

* @return stroke

*/

public BasicStroke getStroke() {

return stroke;

}

/**

* @param stroke 要设置的 stroke

*/

public void setStroke(BasicStroke stroke) {

this.stroke = stroke;

}

/**

* 设置画笔粗细

* @param width

*/

public void setStroke(float width) {

this.stroke = new BasicStroke(width, stroke.getEndCap(), stroke.getLineJoin());

}

/**

* 设置画笔端点的装饰

* @param cap 参考 java.awt.BasicStroke 类静态字段

*/

public void setStroke(int cap) {

this.stroke = new BasicStroke(stroke.getLineWidth(), cap, stroke.getLineJoin());

}

/**

* @return color

*/

public Color getColor() {

return color;

}

/**

* @param color 要设置的 color

*/

public void setColor(Color color) {

this.color = color;

}

public void mouseClicked(MouseEvent mouseEvent) {

}

/**

* 鼠标按下

*/

public void mousePressed(MouseEvent mouseEvent) {

this.oldMouseX = this.mouseX = mouseEvent.getX();

this.oldMouseY = this.mouseY = mouseEvent.getY();

repaint();

}

public void mouseReleased(MouseEvent mouseEvent) {

}

/**

* 鼠标进入棋盘

*/

public void mouseEntered(MouseEvent mouseEvent) {

this.setCursor(new Cursor(Cursor.CROSSHAIR_CURSOR));

}

/**

* 鼠标退出棋盘

*/

public void mouseExited(MouseEvent mouseEvent) {

this.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));

}

/**

* 鼠标拖动

*/

public void mouseDragged(MouseEvent mouseEvent) {

this.oldMouseX = this.mouseX;

this.oldMouseY = this.mouseY;

this.mouseX = mouseEvent.getX();

this.mouseY = mouseEvent.getY();

repaint();

}

public void mouseMoved(MouseEvent mouseEvent) {

}

}

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