java高薪之路__005_IO流

参考地址：
1. http://blog.csdn.net/yczz/article/details/38761237[/code] 
File类

package com.hxw;
public class Member {
private String name;
private int age;
public Member() {
}
public Member(String name, int age) {
this.name = name;
this.age = age;
}
public void setName(String name){
this.name = name;
}
public void setAge(int age) {
this.age = age;
}
public String getName() {
return name;
}
public int getAge() {
return age;
}
}

import java.io.*;
public class DataStreamDemo
{
public static void main(String[]args)
{
Member[] members = {new Member("Justin",90),
new Member("momor",95),
new Member("Bush",88)};
try {
DataOutputStream dataOutputStream = new DataOutputStream(new FileOutputStream(args[0]));

for(Member member:members)
{
//写入UTF字符串
dataOutputStream.writeUTF(member.getName());
//写入int数据
dataOutputStream.writeInt(member.getAge());
}

//所有数据至目的地
dataOutputStream.flush();
//关闭流
dataOutputStream.close();

DataInputStream dataInputStream = new DataInputStream(new FileInputStream(args[0]));

//读出数据并还原为对象
for(int i=0;i<members.length;i++)
{
//读出UTF字符串
String name =dataInputStream.readUTF();
//读出int数据
int score =dataInputStream.readInt();
members[i] = new Member(name,score);
}

//关闭流
dataInputStream.close();

//显示还原后的数据
for(Member member : members)
{
System.out.printf("%s\t%d%n",member.getName(),member.getAge());
}
}
catch(IOException e)
{
e.printStackTrace();
}
}
}


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