Java Dataoutputstream包装流

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wx5e6caa8b9792d 2022-08-01 15:36:31 博主文章分类：Java编程 ©著作权

文章标签 java i++ 文章分类 后端开发

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package com.ejvqa.test02;


 import java.io.DataInputStream;

 import java.io.DataOutputStream;

 import java.io.File;

 import java.io.FileInputStream;

 import java.io.FileOutputStream;

 import java.io.IOException;


 import com.ejvqa.day01.dayGet;


 public class DataStreamTest {

     public static void main(String[] args) throws IOException {

         FileOutputStream out=null;

         DataOutputStream da=null;

         try {

             System.out.println("输入账目");

             out=new FileOutputStream(new File("a.dat"));

             da=new DataOutputStream(out);

             for (int i = 0; i < 5; i++) {

                 double temp=(Math.random());

                 da.writeDouble(temp);

                 System.out.println(temp);

                 

             }

             da.flush();

         } catch (Exception e) {

             // TODO: handle exception

             e.printStackTrace();

         }finally{

             out.close();

             da.close();

         }

         System.out.println("输出账目");

         FileInputStream inStream=new FileInputStream(new File("a.dat"));

         DataInputStream in=new DataInputStream(inStream);

         for (int i = 0; i <5; i++) {

             double f=in.readDouble();

             System.out.println(f);

         }

         in.close();

         inStream.close();

     }

     


 }