ByteBuffer isDirect() methods in Java with Examples

The isDirect() method of java.nio.ByteBuffer Class is used to tell whether or not this byte buffer is direct.

Syntax:

public abstract boolean isDirect()

Return Value: This method returns true if, and only if, this buffer is direct.

Below are the examples to illustrate the isDirect() method:

Examples 1:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Java program to demonstrate
// isDirect() method
  
import java.nio.*;
import java.util.*;
  
public class GFG {
    public static void main(String[] args)
    {
        // defining and allocating ByteBuffer
        // using allocate() method
        ByteBuffer byteBuffer
            = ByteBuffer.allocateDirect(4);
  
        // check the byteBuffer
        // using isDirect() method
        boolean val = byteBuffer.isDirect();
  
        // checking the condition
        if (val)
            System.out.println("buffer is direct");
        else
            System.out.println("buffer is not direct");
    }
}

chevron_right


Output:

buffer is direct

Examples 2:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Java program to demonstrate
// isDirect() method
  
import java.nio.*;
import java.util.*;
  
public class GFG {
    public static void main(String[] args)
    {
        // defining and allocating ByteBuffer
        // using allocate() method
        ByteBuffer byteBuffer = ByteBuffer.allocate(4);
  
        // check the byteBuffer
        // using isDirect() method
        boolean val = byteBuffer.isDirect();
  
        // checking the condition
        if (val)
            System.out.println("buffer is direct");
        else
            System.out.println("buffer is not direct");
    }
}

chevron_right


Output:

buffer is not direct

Reference: https://docs.oracle.com/javase/9/docs/api/java/nio/ByteBuffer.html#isDirect–



My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.