IO异常 的处理 test

 package com.throwsss;

 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;

 class Picture{
     public static void readWrite(){
     File file = new File("D://abc.jpg");
     File file2 = new File("F://abc.jpg");
     InputStream inputStream = null;
     FileOutputStream fileOutputStream = null;
     try {
         inputStream = new FileInputStream(file);
         fileOutputStream = new FileOutputStream(file2);
         byte[] bs = new byte[1024];
         int length = 0;
         try {
             while((length = inputStream.read(bs))!=-1){
                 fileOutputStream.write(bs, 0, length);
             }
         } catch (IOException e) {
             // TODO Auto-generated catch block
             throw new RuntimeException(e);
           }
         } catch (FileNotFoundException e) {
         // TODO Auto-generated catch block
           throw new RuntimeException(e);
         }finally{
             if(fileOutputStream != null){
                 try {
                     fileOutputStream.close();
                     System.out.println("关闭输出流资源成功...");
                 } catch (IOException e) {
                     System.out.println("关闭输出流资源失败...");
                     throw new RuntimeException(e);
                 }finally{
                     if(inputStream != null){
                         try {
                             inputStream.close();
                             System.out.println("关闭输入流对象成功...");
                         } catch (IOException e) {
                             System.out.println("关闭输入流对象失敗...");
                             throw new RuntimeException(e);
                         }
                     }
                 }
             }
         }

     }
 }

 public class Throwtest {

     public static void main(String[] args) {
         // TODO Auto-generated method stub

         Picture picture = new Picture();
         picture.readWrite();
     }

 }