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Java ByteArrayInputStream markSupported() Method with Example

ByteArrayInputStream Class markSupported() method: Here, we are going to learn about the markSupported() method of ByteArrayInputStream Class with its syntax and example.
Submitted by Preeti Jain, on March 02, 2020

ByteArrayInputStream Class markSupported() method

• markSupported() method is available in java.util package.
• markSupported() method is used to check whether this ByteArrayInputStream support mark() and reset() methods 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 supportive methods.

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 support mark() and reset() method otherwise it returns false.

Example:

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

import java.io.*;

public class MarkSupportedBAIS {
    public static void main(String[] args) throws Exception {
        byte[] by = {
            97,
            98,
            98,
            99
        };

        // Instantiates ByteArrayInputStream 
        ByteArrayInputStream byte_s = new ByteArrayInputStream(by);

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

        byte_s.close();
    }
}

Output

byte_s.markSupported(): true