package source;

import java.awt.Image;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

import java.util.ArrayList;

import javax.swing.GroupLayout;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFileChooser;
import javax.swing.JOptionPane;

import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;

import javax.swing.JTextField;
import javax.swing.LayoutStyle;

import javax.swing.border.LineBorder;
import javax.swing.SwingUtilities;

public class PictureShow extends JFrame implements ActionListener {

 private static final long serialVersionUID = 1L;

    private JButton jButton1;
    private JButton jButton4;
    private JLabel jLabel2;
    private JButton jButton3;
    private JButton jButton2;
    private JTextField jTextField1;
    private JLabel jLabel1;
    private int count=0;
    private int num=0;
    private ArrayList<String> list=new ArrayList<String>();
 public static void main(String[] args) {
  SwingUtilities.invokeLater(new Runnable() {
   public void run() {
    PictureShow inst = new PictureShow();
    inst.setLocationRelativeTo(null);
    inst.setVisible(true);
   }
  });
 }
 
 public PictureShow() {
  super();
  initGUI();
 }
 
 private void initGUI() {

  try {
   GroupLayout thisLayout = new GroupLayout((JComponent)getContentPane());
   getContentPane().setLayout(thisLayout);
   setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   setTitle("图片显示V1.0---王荣喜");
   {
    jLabel1 = new JLabel();
    jLabel1.setText("\u6253\u5f00");
   }
   {
    jTextField1 = new JTextField();
   }
   {
    jButton1 = new JButton();
    jButton1.setText("\u6d4f\u89c8...");
    jButton1.addActionListener(this);
   }
   {
    jButton4 = new JButton();
    jButton4.setText("\u653e\u5165\u96be\u9898\u518c");
    jButton4.addActionListener(this);
   }
   {
    jLabel2 = new JLabel();
    jLabel2.setBorder(new LineBorder(new java.awt.Color(0,0,0), 1, false));
    jLabel2.setSize(600, 450);
   }
   {
    jButton2 = new JButton();
    jButton2.setText("\u4e0a\u4e00\u5f20");
    jButton2.addActionListener(this);
   }
   {
    jButton3 = new JButton();
    jButton3.setText("\u4e0b\u4e00\u5f20");
    jButton3.addActionListener(this);
   }
   thisLayout.setVerticalGroup(thisLayout.createSequentialGroup()
    .addContainerGap()
    .addGroup(thisLayout.createParallelGroup(GroupLayout.Alignment.BASELINE)
        .addComponent(jLabel1, GroupLayout.Alignment.BASELINE, GroupLayout.PREFERRED_SIZE, 20, GroupLayout.PREFERRED_SIZE)
        .addComponent(jTextField1, GroupLayout.Alignment.BASELINE, GroupLayout.PREFERRED_SIZE, GroupLayout.PREFERRED_SIZE, GroupLayout.PREFERRED_SIZE)
        .addComponent(jButton1, GroupLayout.Alignment.BASELINE, GroupLayout.PREFERRED_SIZE, GroupLayout.PREFERRED_SIZE, GroupLayout.PREFERRED_SIZE)
        .addComponent(jButton4, GroupLayout.Alignment.BASELINE, GroupLayout.PREFERRED_SIZE, 22, GroupLayout.PREFERRED_SIZE))
    .addPreferredGap(LayoutStyle.ComponentPlacement.UNRELATED)
    .addGroup(thisLayout.createParallelGroup()
        .addComponent(jLabel2, GroupLayout.Alignment.LEADING, 0, 496, Short.MAX_VALUE)
        .addGroup(thisLayout.createSequentialGroup()
            .addGap(210)
            .addGroup(thisLayout.createParallelGroup()
                .addGroup(GroupLayout.Alignment.LEADING, thisLayout.createSequentialGroup()
                    .addComponent(jButton2, GroupLayout.PREFERRED_SIZE, GroupLayout.PREFERRED_SIZE, GroupLayout.PREFERRED_SIZE)
                    .addGap(0, 11, Short.MAX_VALUE))
                .addGroup(GroupLayout.Alignment.LEADING, thisLayout.createSequentialGroup()
                    .addGap(11)
                    .addComponent(jButton3, GroupLayout.PREFERRED_SIZE, GroupLayout.PREFERRED_SIZE, GroupLayout.PREFERRED_SIZE)
                    .addGap(0, 0, Short.MAX_VALUE)))
            .addGap(253)))
    .addContainerGap(24, 24));
   thisLayout.setHorizontalGroup(thisLayout.createSequentialGroup()
    .addGroup(thisLayout.createParallelGroup()
        .addComponent(jButton2, GroupLayout.Alignment.LEADING, GroupLayout.PREFERRED_SIZE, 79, GroupLayout.PREFERRED_SIZE)
        .addGroup(GroupLayout.Alignment.LEADING, thisLayout.createSequentialGroup()
            .addGap(24)
            .addComponent(jLabel1, GroupLayout.PREFERRED_SIZE, 54, GroupLayout.PREFERRED_SIZE)))
    .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
    .addGroup(thisLayout.createParallelGroup()
        .addGroup(GroupLayout.Alignment.LEADING, thisLayout.createSequentialGroup()
            .addComponent(jLabel2, GroupLayout.PREFERRED_SIZE, 608, GroupLayout.PREFERRED_SIZE)
            .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
            .addComponent(jButton3, GroupLayout.PREFERRED_SIZE, 82, GroupLayout.PREFERRED_SIZE))
        .addGroup(GroupLayout.Alignment.LEADING, thisLayout.createSequentialGroup()
            .addComponent(jTextField1, GroupLayout.PREFERRED_SIZE, 428, GroupLayout.PREFERRED_SIZE)
            .addGap(28)
            .addComponent(jButton1, GroupLayout.PREFERRED_SIZE, 98, GroupLayout.PREFERRED_SIZE)
            .addGap(19)
            .addComponent(jButton4, GroupLayout.PREFERRED_SIZE, 109, GroupLayout.PREFERRED_SIZE)
            .addGap(0, 20, Short.MAX_VALUE))));
   pack();
   this.setSize(800, 600);
  } catch (Exception e) {
      //add your error handling code here
   e.printStackTrace();
  }
 }
 
  
    @Override
 public void actionPerformed(ActionEvent e) {
  // TODO Auto-generated method stub
  if(e.getSource()==jButton1){
   JFileChooser fc=new JFileChooser();
   int returnval = fc.showOpenDialog(this);
      if(returnval == JFileChooser.APPROVE_OPTION){
       File f = fc.getSelectedFile ();
       String fileName = f.getName ();
       String filePath=fc.getSelectedFile().getAbsolutePath();
       jTextField1.setText(filePath);
       //System.out.println(filePath);
       this.setTitle (fileName+"--图片查看器V1.0---王荣喜");
       ImageIcon image=new ImageIcon(filePath); 
       int width=image.getIconWidth();
       int height=image.getIconHeight();
       if(width>height){
        Image scaledImage=image.getImage().getScaledInstance(600,450,Image.SCALE_DEFAULT);
        ImageIcon scaledIcon=new ImageIcon(scaledImage);
        jLabel2.setIcon(scaledIcon);
        jLabel2.setHorizontalAlignment(0);
        jLabel2.setVerticalAlignment(0);
       }else{
        Image scaledImage=image.getImage().getScaledInstance(300,450,Image.SCALE_DEFAULT);
        ImageIcon scaledIcon=new ImageIcon(scaledImage);
        jLabel2.setIcon(scaledIcon);
        jLabel2.setHorizontalAlignment(0);
        jLabel2.setVerticalAlignment(0);
       }
       File []fileList=f.getParentFile().listFiles();
       //System.out.println(fileList.length);
       for(int i=0;i<fileList.length;i++){
        if(fileList[i].isFile()){
         String []part=fileList[i].getName().split("\\.");
         if(part[1].equals("jpg")||part[1].equals("JPG")||part[1].equals("GIF")||part[1].equals("gif")||part[1].equals("png")||part[1].equals("PNG")||part[1].equals("bmp")||part[1].equals("BMP")){
          //System.out.println(part[1]);
          list.add(fileList[i].getAbsolutePath());
          num++;
          //System.out.println(fileList[i].getAbsoluteFile());
          if(fileList[i].getAbsolutePath().equals(filePath)){
           count=num;
          }
         }
        }
       }
       //System.out.println(num+"\t"+count);
      }
  }else if(e.getSource()==jButton2){
   if(count>=1){
    String path=list.get(count-1);
    //System.out.println(path);
    ImageIcon image=new ImageIcon(path);
    int width=image.getIconWidth();
       int height=image.getIconHeight();
       if(width>height){

        Image scaledImage=image.getImage().getScaledInstance(600,450,Image.SCALE_DEFAULT);
        ImageIcon scaledIcon=new ImageIcon(scaledImage);
        jLabel2.setIcon(scaledIcon);
        jLabel2.setHorizontalAlignment(0);
        jLabel2.setVerticalAlignment(0);
      
      }else{
        Image scaledImage=image.getImage().getScaledInstance(300,450,Image.SCALE_DEFAULT);
        ImageIcon scaledIcon=new ImageIcon(scaledImage);
        jLabel2.setIcon(scaledIcon);
        jLabel2.setHorizontalAlignment(0);
        jLabel2.setVerticalAlignment(0);
       }
    jTextField1.setText(path);
    File file=new File(path);
    this.setTitle(file.getName()+"--图片查看器V1.0---王荣喜");
    count--;
    //System.out.println(path+"\t"+count);
   }else{
     JOptionPane.showMessageDialog(null, "已经是第一张图片！");
    }
  }else if(e.getSource()==jButton3){
   if(count<list.size()-1){
    //System.out.println(list.get(0));
    String path=list.get(count+1);
    ImageIcon image=new ImageIcon(path);
    int width=image.getIconWidth();
       int height=image.getIconHeight();
       if(width>height){
        Image scaledImage=image.getImage().getScaledInstance(600,450,Image.SCALE_DEFAULT);
        ImageIcon scaledIcon=new ImageIcon(scaledImage);
        jLabel2.setIcon(scaledIcon);
        jLabel2.setHorizontalAlignment(0);
        jLabel2.setVerticalAlignment(0);
       }else{
        Image scaledImage=image.getImage().getScaledInstance(300,450,Image.SCALE_DEFAULT);
        ImageIcon scaledIcon=new ImageIcon(scaledImage);
        jLabel2.setIcon(scaledIcon);
        jLabel2.setHorizontalAlignment(0);
        jLabel2.setVerticalAlignment(0);
       }
    jTextField1.setText(path);
    File file=new File(path);
    this.setTitle(file.getName()+"--图片查看器V1.0---王荣喜");
    count++;
    //System.out.println(path+"\t"+count);
   }else{
    JOptionPane.showMessageDialog(null, "已经是最后一张图片！");
   }
  }else if(e.getSource()==jButton4){
   if(jTextField1.getText().equals("")){
    JOptionPane.showMessageDialog(null, "请先打开一张图片！");
   }else{
    try{
     FileInputStream fin=new FileInputStream(jTextField1.getText());
     BufferedInputStream bin=new BufferedInputStream(fin);
     String filename=(new File(jTextField1.getText())).getName();
     FileOutputStream fou=new FileOutputStream("d://diffcult//"+filename);
     BufferedOutputStream bou=new BufferedOutputStream(fou);
     byte []buff=new byte[1024*10];
     int len;
     while((len=bin.read(buff))!=-1){
      bou.write(buff, 0, len);
     }
     bou.flush();
     bou.close();
     bin.close();
     fou.close();
     fin.close();
     (new File(jTextField1.getText())).delete();
     list.remove(count);
     JOptionPane.showMessageDialog(null, "该题目已经放进难题册！");
    }catch(IOException e1){
     JOptionPane.showMessageDialog(null, "文件流读写错误！");
    }
    
   }
  }
  
       
 }
效果图：

http://s1/bmiddle/62cd5a982dbf4b12369f0&690