Java Java.io.CharArrayWriter.writeTo() 方法

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  描述

  java.io.BufferedInputStream.writeTo(Writer out)方法将缓冲区内容写入另一个流。
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  声明

  以下是java.io.CharArrayWriter.writeTo(Writer out)方法的声明-

   public void writeTo(Writer out)

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  参数

  out目标输出流
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  返回值

  此方法不返回任何值。
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  异常

  IOException如果发生任何IO错误。
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  例子

  以下示例显示java.io.CharArrayWriter.writeTo（Writer out）方法的用法。

   
  package com.jc2182; 
  import java.io.CharArrayWriter;
  
  public class CharArrayWriterDemo {
     public static void main(String[] args) {      
        String str = "Hello World!!";
        CharArrayWriter chw = null;
        CharArrayWriter chwd = null;   
        
        try {
           // create character array writer
           chw = new CharArrayWriter();
  
           // create destination character array writer
           chwd = new CharArrayWriter();
           
           // string to be written to writer
           chw.write(str);
           
           // write to destination array writer
           chw.writeTo(chwd);
           
           // print the destination buffer content as string
           System.out.println(chwd.toString());
                 
        } catch(Exception e) {
           // for any error
           e.printStackTrace();
        } finally {
           // releases all system resources from writer
           if(chw!=null)
              chw.close();
        }
     }
  }
  

  让我们编译并运行以上程序，这将产生以下结果-

   Hello World!!