java file操作 问题 报错-问答-阿里云开发者社区-阿里云

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import java.io.*;

public class file2 {

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

    File f= new File("D\\xx\\te.txt") ; 
    OutputStream out = null ; 

    try
    {

        out = new FileOutputStream(f) ; 

    }
    catch(Exception e)
    {
        System.out.println("asdas");
    }

    String a =new String("sadasdas")  ;
    byte[] b = a.getBytes() ;


    try
    { 
        out.write(b);

    }
    catch(Exception e)
    {
        System.out.println("asdas");
    }

    try
    {
        out.close() ;

    }
    catch(Exception e)
    {
        System.out.println("asdas");
    }

    InputStream in = null ; 
    try
    {
        in =    new FileInputStream(f ) ; 

    }
    catch(Exception e)
    {
        System.out.println("asdas");
    }

    byte[] d = new byte[1024] ; 
    int i= 0 ; 
    try
    {
        i = in.read(d) ; 
        in.close() ;

        System.out.println(i);
    }
    catch(Exception e)
    {
        System.out.println("asdas");
    }


    System.out.println(i);

}

}

调试了一下，发现好像所有的try都进catch 了， 感觉上自己应该没错啊，就是输不出我要的结果。