JDK7，JDK9流中异常的处理

//JDK7
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;


public class Demo07try {
    public static void main(String[] args) throws IOException {
        try( FileInputStream fis=new FileInputStream("F:\basic\untitled13\src\it\cast\day15\demo01\1.txt");
             FileOutputStream fos=new FileOutputStream("F:\basic\untitled13\src\it\cast\day15\demo01\5.txt");)
        {
            byte[] bytes1=new byte[1024];
            int len=0;
            while ((len=fis.read(bytes1))!=-1){
                //System.out.println(new String(bytes1,0,len));//读取有效的几个
                fos.write(bytes1,0,len);
            }
        }catch (IOException e){
            System.out.println(e);
        }
    }
}

JDK9：

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;


public class Demo07try_JDK9 {
    public static void main(String[] args) throws IOException {
        FileInputStream fis=new FileInputStream("F:\basic\untitled13\src\it\cast\day15\demo01\1.txt");
        FileOutputStream fos=new FileOutputStream("F:\basic\untitled13\src\it\cast\day15\demo01\5.txt");
        try( fis;fos){
            byte[] bytes1=new byte[1024];
            int len=0;
            while ((len=fis.read(bytes1))!=-1){
               
                fos.write(bytes1,0,len);
            }
        }catch (IOException e){
            System.out.println(e);
        }
    }
}