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();
    }

}