Java IO Tutorial - Java CharArrayReader .markSupported ()

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Syntax

CharArrayReader.markSupported() has the following syntax.

public boolean markSupported()

Example

In the following code shows how to use CharArrayReader.markSupported() method.

// w w  w .  j  a va 2s  .c o m

import java.io.CharArrayReader;

public class Main {
  public static void main(String[] args) throws Exception {

    char[] ch = { 'A', 'B', 'C', 'D', 'E' };


    CharArrayReader car = new CharArrayReader(ch);

    // verifies if the stream support mark() method
    boolean bool = car.markSupported();
    System.out.println("Is mark supported : " + bool);
    System.out.println("Proof:");

    // read and print the characters from the stream
    System.out.println(car.read());
    System.out.println(car.read());

    // mark() is invoked at this position
    car.mark(0);
    System.out.println("Mark() is invoked");
    System.out.println(car.read());
    System.out.println(car.read());

    // reset() is invoked at this position
    car.reset();
    System.out.println("Reset() is invoked");
    System.out.println(car.read());
    System.out.println(car.read());
    System.out.println(car.read());

  }
}

The code above generates the following result.

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