Java.io.CharArrayWriter.reset() Method

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Description

The java.io.CharArrayWriter.reset() method resets the buffer so that it can be used again without throwing away the allocated buffer.

Declaration

Following is the declaration for java.io.CharArrayWriter.reset() method −

public void reset()

Parameters

NA

Return Value

The method does not return any value.

Exception

NA

Example

The following example shows the usage of java.io.CharArrayWriter.reset() method.

package com.tutorialspoint;

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();
      }
   }
}

Let us compile and run the above program, this will produce the following result −

Before Reset:
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Reset is invoked
After reset:
1234567890