JAVA中如何插入图片?要用什么代码?不用小程序实现的!!!!

//本程序演示媒体跟踪器的用法，从图像中剪切（抓取）部分图像的方法。

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import java.awt.*;

import java.awt.event.*;

import java.awt.image.*;

import javax.swing.*;

class ImagePanelB extends JPanel{

private Image image, blockImage;

public ImagePanelB(){

MediaTracker mt = new MediaTracker(this); //创建媒体跟踪器mt

image = Toolkit.getDefaultToolkit().getImage("resource.gif");

mt.addImage(image,0); //将image列入0号编组并跟踪image的下载过程

try{ mt.waitForID(0); //等待图像组编号为0的所有图像下载完成

}catch(InterruptedException e){e.printStackTrace();}

int imageW =image.getWidth(this); //获取图像宽度，单位为像素

int imageH =image.getHeight(this); //获取图像高度，单位为像素

System.out.println("图像的宽="+imageW+" 图像的高="+imageH);

//准备从image中剪出宽为w,高为h的一块图像

int w=imageW/2; int h=imageH/2;

PixelGrabber pg=null; //创建像素抓取器

MemoryImageSource ip=null; //创建内存图像源

Toolkit tool = getToolkit(); int pixels[]= new int[w*h];

/*建立像素抓取器pg。从image中抓取矩形区域中的像素。矩形区域左上角顶点坐标为(0,0),矩形宽w,矩形高h。w,h的单位是像素数。抓取到的像素存于整数数组pixels中。第7个参数是数组pixels中存储第1个像素的下标，通常为0。第8个参数是所抓取的矩形区域的一行包含的像素个数。*/

pg = new PixelGrabber(image,0,0,w,h,pixels,0,w);

try{

pg.grabPixels(); //开始图像的生产（抓取像素并存入pixels）

ip=new MemoryImageSource(w,h,pixels,0,w);

blockImage=tool.createImage(ip);

} catch(InterruptedException ie){}

}

public void paintComponent(Graphics g){

super.paintComponent(g);

g.drawImage(image, 40, 20, this);

g.drawImage(blockImage, 240, 20, this);

}

}

class ImageFrameB extends JFrame{

public ImageFrameB(){

setTitle("LoadingImageB"); setSize(440, 200);

addWindowListener(new WindowAdapter(){//内部类的匿名表示形式

public void windowClosing(WindowEvent e){ System.exit(0); }

} );

Container contentPane = getContentPane();

contentPane.add(new ImagePanelB());

}

}

public class LoadingImageB{

public static void main(String[] args){

JFrame frame = new ImageFrameB();

frame.setVisible(true);

}

}

求一个用JAVA写的简单的记事本源代码程序 要有运行结果的截图和源代码，在线等

这个是我以前写着玩的一个例子，可以运行起来看看，有保存，撤销，复制，剪切功能，自己研究研究

package test;

import java.awt.Font;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.WindowEvent;

import java.awt.event.WindowListener;

import java.io.File;

import java.io.FileReader;

import java.io.FileWriter;

import java.io.IOException;

import javax.swing.JFileChooser;

import javax.swing.JFrame;

import javax.swing.JMenu;

import javax.swing.JMenuBar;

import javax.swing.JMenuItem;

import javax.swing.JOptionPane;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

public class MyNote {

private JFrame frame = new JFrame("记事本");

private JTextArea text = new JTextArea();

private static boolean flag = false; // 判断是否保存

public MyNote() {

JMenuBar bar = new JMenuBar();

JMenu edit = new JMenu("check");

JMenu check = new JMenu("edit");

JMenu help = new JMenu("help");

JMenuItem term = new JMenuItem("copy");

JMenuItem term1 = new JMenuItem("paste");

JMenuItem term2 = new JMenuItem("cut");

JMenuItem term3 = new JMenuItem("backout");

JMenuItem term4 = new JMenuItem("import");

JMenuItem term5 = new JMenuItem("open");

JMenuItem term6 = new JMenuItem("exit");

JMenuItem term7 = new JMenuItem("save to");

JMenuItem term8 = new JMenuItem("about");

JMenuItem term9 = new JMenuItem("save");

JMenuItem term10 = new JMenuItem("new");

Font font = new Font(null, JFrame.ABORT, 24);

text.setFont(font);

JScrollPane scroll = new JScrollPane(text);

frame.setJMenuBar(bar);

bar.add(edit);

bar.add(check);

bar.add(help);

edit.add(term7);

edit.add(term4);

edit.add(term5);

edit.add(term6);

check.add(term);

check.add(term1);

check.add(term2);

check.add(term3);

help.add(term8);

check.add(term9);

edit.add(term10);

frame.add(scroll);

text.setVisible(false);

frame.setSize(400, 400);

frame.setVisible(true);

frame.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);

frame.setLocation(500, 500);

// 事件注册

MenuListener m = new MenuListener();

term5.addActionListener(m);

NewListener n = new NewListener();

term4.addActionListener(n);

SaveListener s = new SaveListener();

term7.addActionListener(s);

CopyListener c = new CopyListener();

term.addActionListener(c);

PasteListener p = new PasteListener();

term1.addActionListener(p);

CutListener c1 = new CutListener();

term2.addActionListener(c1);

HelpListener h = new HelpListener();

term8.addActionListener(h);

ExitListener e = new ExitListener();

term6.addActionListener(e);

CloseListener c2 = new CloseListener();

frame.addWindowListener(c2);

BackOutListener b = new BackOutListener();

term3.addActionListener(b);

SaveActionListener s1 = new SaveActionListener();

term9.addActionListener(s1);

NewFileListener n1 = new NewFileListener();

term10.addActionListener(n1);

}

private class MenuListener implements ActionListener {

public void actionPerformed(ActionEvent e) {

text.setVisible(true);

}

}

// 打开新文件

private class NewListener implements ActionListener {

public void actionPerformed(ActionEvent e) {

text.setText("");

JFileChooser fileChooser = new JFileChooser();

int r = fileChooser.showOpenDialog(frame);

if (r == JFileChooser.APPROVE_OPTION) {

try {

File file = fileChooser.getSelectedFile();

FileReader fr = new FileReader(file);

char[] buf = new char[1024];

int len = 0;

while ((len = fr.read(buf)) != -1) {

text.append(new String(buf, 0, len));

}

fr.close();

} catch (IOException e1) {

e1.printStackTrace();

}

}

}

}

// 另存为

private class SaveListener implements ActionListener {

public void actionPerformed(ActionEvent e) {

JFileChooser filechoose = new JFileChooser();

int r = filechoose.showSaveDialog(frame);

if (r == JFileChooser.APPROVE_OPTION) {

File file = filechoose.getSelectedFile();

try {

FileWriter writer = new FileWriter(file);

writer.write((String) text.getText());

writer.close();

// 下面方法也可以

/*

* PrintWriter print=new PrintWriter(file);

* print.write(text.getText()); print.close();

*/

} catch (IOException e1) {

e1.printStackTrace();

}

}

}

}

// 复制

private class CopyListener implements ActionListener {

public void actionPerformed(ActionEvent e) {

text.copy();

}

}

// 粘贴

private class PasteListener implements ActionListener {

public void actionPerformed(ActionEvent e) {

text.paste();

}

}

// 剪切

private class CutListener implements ActionListener {

public void actionPerformed(ActionEvent e) {

text.cut();

}

}

// 关于主题

private class HelpListener implements ActionListener {

public void actionPerformed(ActionEvent e) {

JOptionPane.showMessageDialog(frame, "汪雄辉的无敌记事本");

}

}

private class ExitListener implements ActionListener {

public void actionPerformed(ActionEvent e) {

JOptionPane.showMessageDialog(frame, "谢谢！");

try {

Thread.sleep(2000);

System.exit(0);

} catch (InterruptedException e1) {

e1.printStackTrace();

}

}

}

private class CloseListener implements WindowListener {

public void windowActivated(WindowEvent e) {

}

public void windowClosed(WindowEvent e) {

}

// 关闭窗口

public void windowClosing(WindowEvent e) {

StringBuffer sb = new StringBuffer();

try {

FileReader fr = new FileReader("未命名文件.txt");

char[] buf = new char[1024];

int len = 0;

while ((len = fr.read(buf)) != -1) {

sb.append(new String(buf, 0, len));

}

fr.close();

} catch (Exception e1) {

e1.getStackTrace();

}

String s = sb.toString();

if (flag == false || !(text.getText().equals(s))) {

int r = JOptionPane.showConfirmDialog(frame, "你还没有保存，要保存吗？");

if (r == JOptionPane.OK_OPTION) {

JFileChooser filechoose = new JFileChooser();

int r1 = filechoose.showSaveDialog(frame);

if (r1 == JFileChooser.APPROVE_OPTION) {

File file = filechoose.getSelectedFile();

try {

FileWriter writer = new FileWriter(file);

writer.write((String) text.getText());

writer.close();

System.exit(0);

// 下面方法也可以

/*

* PrintWriter print=new PrintWriter(file);

* print.write(text.getText()); print.close();

*/

} catch (IOException e1) {

e1.printStackTrace();

}

} else {

}

} else if (r == JOptionPane.NO_OPTION) {

System.exit(0);

} else {

}

} else

System.exit(0);

}

public void windowDeactivated(WindowEvent e) {

}

public void windowDeiconified(WindowEvent e) {

}

public void windowIconified(WindowEvent e) {

}

public void windowOpened(WindowEvent e) {

}

}

// 撤销

private class BackOutListener implements ActionListener {

public void actionPerformed(ActionEvent e) {

if (flag == false)

text.setText("");

else {

try {

FileReader fr = new FileReader("未命名文件.txt");

char[] buf = new char[1024];

int len = 0;

while ((len = fr.read(buf)) != -1) {

text.setText(new String(buf, 0, len));

}

fr.close();

} catch (IOException e1) {

e1.getStackTrace();

}

}

}

}

// 保存文件

private class SaveActionListener implements ActionListener {

public void actionPerformed(ActionEvent e) {

flag = true;

FileWriter writer;

try {

writer = new FileWriter("未命名文件.txt");

writer.write((String) text.getText());

writer.close();

} catch (IOException e1) {

e1.printStackTrace();

}

}

}

private class NewFileListener implements ActionListener {

public void actionPerformed(ActionEvent e) {

new MyNote();

}

}

public static void main(String[] args) {

new MyNote();

}

}

怎么为Java程序添加背景图片代码？

仅仅是给窗口添加背景的话是很简单的，添加上以下语句（自己去添加变量哈）：

label = new JLabel(background); //background为ImageIcon

// 把标签的大小位置设置为图片刚好填充整个面板

label.setBounds(0, 0, this.getWidth(), this.getHeight());

//添加图片到frame的第二层(把背景图片添加到分层窗格的最底层作为背景)

this.getLayeredPane().add(label,new Integer(Integer.MIN_VALUE));

//把内容窗格转化为JPanel，否则不能用方法setOpaque()来使内容窗格透明

jPanel=(JPanel)this.getContentPane();

//设置透明

jPanel.setOpaque(false);

然后你上面那个JPanel p也设置成透明就可以了

java 编一个程序按下按钮（button）实现换下一张照片 我写的 帮改一下

加了这些代码

private static final long serialVersionUID = 1L;

Image imgs[]=new Image[5];

repaint();

改后代码如下：

import java.awt.*;

import java.awt.event.*;

import java.applet.Applet;

public class PlayAudio extends Applet implements ActionListener {

private static final long serialVersionUID = 1L;

Image imgs[]=new Image[5];

Button b2;

public void init() {

setLayout(new FlowLayout()); // 使用布局管理器

imgs[0]=getImage(getCodeBase(),"1.jpg");

imgs[1]=getImage(getCodeBase(),"2.jpg");

imgs[2]=getImage(getCodeBase(),"3.jpg");

imgs[3]=getImage(getCodeBase(),"4.jpg");

imgs[4]=getImage(getCodeBase(),"5.jpg");

b2=new Button("下一张"); // 定义Play按钮

b2.addActionListener(this); // 给Play按钮添加一个监听事件

add(b2);

}

private static int count = 0;

public void actionPerformed(ActionEvent e)

{

//if(e.getSource() == b2)

//{

count=++count%5;

repaint();

//}

}

public void paint(Graphics g)

{

g.drawImage(imgs[count],0,40,this);

}

}

==============================

g.drawImage("m"+count,0,40,this);

这个地方需要传进image类型的对象:m"+count是字符串类型

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