Java.io.CharArrayWriter.append() Method

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Description

The java.io.CharArrayWriter.append(CharSequence csq) method appends the specific character sequence to this writer.

Declaration

Following is the declaration for java.io.CharArrayWriter.append(CharSequence csq) method −

public CharArrayWriter append(CharSequence csq)

Parameters

csq − The character sequence to be appended. If the character sequence is null, the writer is appended with 4 characters 'null'.

Return Value

This CharArrayWriter

Exception

NA

Example

The following example shows the usage of java.io.CharArrayWriter.append(CharSequence csq) 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 sequences
         CharSequence csq = "12345 ";
         CharSequence csq1 = "67890 ";
         CharSequence csq2 = "ABCDE ";
         CharSequence csq3 = "abcde ";
         
         // append character sequences to the writer
         chw.append(csq);
         chw.append(csq1);
         chw.append(csq2);
         chw.append(csq3);
         
         // prints out the character sequences
         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 −

12345 67890 ABCDE abcde