java.io.CharArrayWriter.reset() 方法重设缓冲区，以便它可以被重新使用，无需扔掉分配的缓冲区。

声明

以下是java.io.CharArrayWriter.reset()方法的声明：

public void reset()

参数

• NA

返回值

该方法不返回任何值。

异常

• NA

例子

下面的示例演示java.io.CharArrayWriter.reset()方法的用法。

package com.yiibai;

import java.io.CharArrayWriter;

public class CharArrayWriterDemo {
   public static void main(String[] args) {
      
      CharArrayWriter chw = null;
      
      try{
         // create character array writer
         chw = new CharArrayWriter();
         
         // declare character sequence
         CharSequence csq = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
         
         // append character sequence to the writer
         chw.append(csq);
         
         System.out.println("Before Reset:");
         
         // print  character sequence
         System.out.println(csq);
         
         // invoke reset()
         chw.reset();
         System.out.println("Reset is invoked");
         
         csq = "1234567890";
         
         chw.append(csq);
         
         System.out.println("After reset:");
         
         // print character sequence
         System.out.println(chw.toString());
               
      }catch(Exception e){
         
         // for any error
         e.printStackTrace();
      }finally{
         
         // releases all system resources from writer
         if(chw!=null)
            chw.close();
      }
   }
}

让我们来编译和运行上面的程序，这将产生以下结果：

Before Reset:
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Reset is invoked
After reset:
1234567890