Java DataOutputStream writeInt()方法

java.io.DataOuputStream.writeInt(int v) 用于将int写入输出流。

1 语法

public final void writeInt(int v)

2 参数

v：要写入输出流的int值。

3 返回值

无

4 示例

package com.yiidian;

/**

* 一点教程网： http://www.yiidian.com

*/

/**

* java.io.DataOuputStream.writeInt(int v)方法的例子

*/

import java.io.DataInputStream;

import java.io.DataOutputStream;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

public class Demo {

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

InputStream is = null;

DataInputStream dis = null;

FileOutputStream fos = null;

DataOutputStream dos = null;

int[] i = {128,250,430,520,820};

try {

// create file output stream

fos = new FileOutputStream("d:\\test.txt");

// create data output stream

dos = new DataOutputStream(fos);

// for each int in int buffer

for(int j:i) {

// write int to data output stream

dos.writeInt(j);

}

// force data to the underlying file output stream

dos.flush();

// create file input stream

is = new FileInputStream("d:\\test.txt");

// create new data input stream

dis = new DataInputStream(is);

// available stream to be read

while(dis.available()>0) {

// read four bytes from data input, return int

int k = dis.readInt();

// print int

System.out.print(k+" ");

}

} catch(Exception e) {

// if any error occurs

e.printStackTrace();

} finally {

// releases all system resources from the streams

if(is!=null)

is.close();

if(dis!=null)

dis.close();

if(fos!=null)

fos.close();

if(dos!=null)

dos.close();

}

}

}

输出结果为：

128 250 430 520 820