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Java CharArrayWriter toCharArray() Method with Example

CharArrayWriter Class toCharArray() method: Here, we are going to learn about the toCharArray() method of CharArrayWriter Class with its syntax and example.
Submitted by Preeti Jain, on March 27, 2020

CharArrayWriter Class toCharArray() method

• toCharArray() method is available in java.io package.
• toCharArray() method is used to convert this CharacterArrayWriter stream into a character array.
• toCharArray() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
• toCharArray() method does not throw an exception at the time of converting the stream into a character array.

Syntax:

    public char[] toCharArray();

Parameter(s):

• It does not accept any parameter.

Return value:

The return type of the method is char[], it returns an array of characters from the stream.

Example:

// Java program to demonstrate the example 
// of char[] toCharArray() method of CharArrayWriter

import java.io.*;

public class ToCharArrayOfCAW {
 public static void main(String[] args) {
  String s = "Java World!!!";
  CharArrayWriter caw = null;

  try {
   // Instantiates CharArrayWriter
   caw = new CharArrayWriter();

   // By using write() method is to
   // write the string to the stream caw
   caw.write(s);

   // By using toString() method is 
   // to represent the caw as a string
   System.out.print("caw: " + caw.toString());
   System.out.println();

   // By using toCharArray() method isto
   // convert the caw stream to a character
   // array
   char[] c_arr = caw.toCharArray();

   System.out.println("caw.toCharArray(): ");
   for (char ch: c_arr)
    System.out.print(ch + " ");

  } catch (Exception ex) {
   System.out.println(ex.toString());

  } finally {

   // Free all resources linked with this
   // stream
   if (caw != null)
    caw.close();
  }
 }
}

Output

caw: Java World!!!
caw.toCharArray(): 
J a v a   W o r l d ! ! !