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Java CharArrayReader markSupported() Method with Example

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

CharArrayReader Class markSupported() method

• markSupported() method is available in java.io package.
• markSupported() method is used to check whether this stream support mark() method or not.
• markSupported() 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.
• markSupported() method does not throw an exception at the time of checking mark() support.

Syntax:

    public boolean markSupported();

Parameter(s):

• It does not accept any parameter.

Return value:

The return type of the method is boolean, it returns true when this stream supports mark() method otherwise it returns false.

Example:

// Java program to demonstrate the example 
// of boolean markSupported() method of 
// CharArrayReader

import java.io.*;

public class MarkSupportedOfCAR {
 public static void main(String[] args) {

  CharArrayReader car_stm = null;
  char[] c_arr = {
   'a',
   'b',
   'c',
   'd'
  };

  try {
   // Instantiates CharArrayReader
   car_stm = new CharArrayReader(c_arr);

   // By using markSupported() method isto 
   // check whether this stream support mark()
   // or not
   boolean status = car_stm.markSupported();
   System.out.println("car_stm.markSupported(): " + status);

  } catch (Exception ex) {
   System.out.print("Stream Not Supported mark()!!!!");
  } finally {

   // Free all system resources linked
   // with the stream after closing
   // the stream

   if (car_stm != null)
    car_stm.close();
  }
 }
}

Output

car_stm.markSupported(): true