ByteBuffer get() method in Java

The value at the current position of the buffer is read and then incremented using the method get() in the class java.nio.ByteBuffer. This method returns the value that is at the current buffer position. Also, the BufferUnderflowException is thrown if underflow situation occurs.

A program that demonstrates this is given as follows −

Example

 Live Demo

import java.nio.*;
import java.util.*;
public class Demo {
   public static void main(String[] args) {
      int n = 5;
      try {
         ByteBuffer buffer = ByteBuffer.allocate(n);
         buffer.put((byte)1);
         buffer.put((byte)2);
         buffer.put((byte)3);
         buffer.put((byte)4);
         buffer.put((byte)5);
         buffer.rewind();
         System.out.println("The ByteBuffer is: " + Arrays.toString(buffer.array()));
         byte val1 = buffer.get();
         System.out.println("\nThe value at current position of ByteBuffer is: " + val1);
         byte val2 = buffer.get();
         System.out.println("The value at next position of ByteBuffer is: " + val2);
      } catch (IllegalArgumentException e) {
         System.out.println("Error!!! IllegalArgumentException");
      } catch (ReadOnlyBufferException e) {
         System.out.println("Error!!! ReadOnlyBufferException");
      } catch (BufferUnderflowException e) {
         System.out.println("Error!!! BufferUnderflowException");
      }
   }
}

Output

The ByteBuffer is: [1, 2, 3, 4, 5]
The value at current position of ByteBuffer is: 1
The value at next position of ByteBuffer is: 2

Samual Sam

Published on 04-Mar-2019 07:48:21

• Related Questions & Answers
• ByteBuffer arrayOffset() method in Java
• ByteBuffer equals() method in Java
• ByteBuffer asShortBuffer() method in Java
• ByteBuffer compact() method in Java
• ByteBuffer duplicate() method in Java
• ByteBuffer compareTo() method in Java
• ByteBuffer asLongBuffer() method in Java
• ByteBuffer asReadOnlyBuffer() method in Java
• ByteBuffer asDoubleBuffer() method in Java
• ByteBuffer allocateDirect() method in Java
• ByteBuffer asCharBuffer() method in Java
• ByteBuffer array() method in Java
• ByteBuffer allocate() method in Java
• ByteBuffer asFloatBuffer() method in Java
• ByteBuffer asIntBuffer() method in Java