Java CharArrayWriter类

本文概述

• Java CharArrayWriter类声明
• Java CharArrayWriter类方法

CharArrayWriter类可用于将公共数据写入多个文件。该类继承Writer类。当数据写入此流时, 其缓冲区自动增长。在此对象上调用close()方法无效。

Java CharArrayWriter类声明

让我们看一下Java.io.CharArrayWriter类的声明：

public class CharArrayWriter extends Writer

Java CharArrayWriter类方法

CharArrayWriter类的示例：

在此示例中, 我们将通用数据写入4个文件a.txt, b.txt, c.txt和d.txt。

package com.srcmini;

import java.io.CharArrayWriter;
import java.io.FileWriter;
public class CharArrayWriterExample {
public static void main(String args[])throws Exception{  
		  CharArrayWriter out=new CharArrayWriter();  
		  out.write("Welcome to srcmini");  
		  FileWriter f1=new FileWriter("D:\\a.txt");  
		  FileWriter f2=new FileWriter("D:\\b.txt");  
		  FileWriter f3=new FileWriter("D:\\c.txt");  
		  FileWriter f4=new FileWriter("D:\\d.txt");  
		  out.writeTo(f1);  
		  out.writeTo(f2);  
		  out.writeTo(f3);  
		  out.writeTo(f4);  
		  f1.close();  
		  f2.close();  
		  f3.close();  
		  f4.close();  
  		  System.out.println("Success...");  
		 }  
		}

输出量

Success...

执行该程序后, 你可以看到所有文件都具有公共数据：欢迎使用srcmini。

a.txt：

Welcome to srcmini

b.txt：

Welcome to srcmini

c.txt：

Welcome to srcmini

d.txt：

Welcome to srcmini