Use ByteBuffer for non-byte Java types buffering

In this example we will demonstrate how to perform non-byte Java types buffering using a ByteBuffer in Java. In particular we are going to show you how to use a ByteBuffer to store the following Java types :

  • char
  • short
  • int
  • long
  • float
  • double


In all cases above we are going to use the standard API methods provided by the ByteBuffer class as shown in the code snippet below.

package com.javacodegeeks.snippets.core;

import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.DoubleBuffer;
import java.nio.FloatBuffer;
import java.nio.IntBuffer;
import java.nio.LongBuffer;
import java.nio.ShortBuffer;

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

		// Allocate a new non-direct byte buffer with a 50 byte capacity
		// set this to a big value to avoid BufferOverflowException
		ByteBuffer buf = ByteBuffer.allocate(50);
		// Creates a view of this byte buffer as a char buffer.
		CharBuffer cbuf = buf.asCharBuffer();

		// Creates a view of this byte buffer as a short buffer.
		ShortBuffer sbuf = buf.asShortBuffer();

		// Creates a view of this byte buffer as a short buffer.
		IntBuffer ibuf = buf.asIntBuffer();

		// Creates a view of this byte buffer as a short buffer.
		LongBuffer lbuf = buf.asLongBuffer();

		// Creates a view of this byte buffer as a float buffer.
		FloatBuffer fbuf = buf.asFloatBuffer();

		// Creates a view of this byte buffer as a double buffer.
		DoubleBuffer dbuf = buf.asDoubleBuffer();


This was an example of how to use a ByteBuffer for non-byte Java type buffering in Java.

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Byron Kiourtzoglou

Byron is a master software engineer working in the IT and Telecom domains. He is an applications developer in a wide variety of applications/services. He is currently acting as the team leader and technical architect for a proprietary service creation and integration platform for both the IT and Telecom industries in addition to a in-house big data real-time analytics solution. He is always fascinated by SOA, middleware services and mobile development. Byron is co-founder and Executive Editor at Java Code Geeks.
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