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How to clear int buffer in java.
Posted on: August 4, 2010 at 12:00 AM
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In this tutorial you will see how to clear int buffer in java.

How to clear int buffer in java.

In this tutorial, we will discuss how to clear int buffer in java.            

IntBuffer API:

The java.nio.IntBuffer class extends java.nio.Buffer class. It provides the following methods:

Return type Method Description
static intBuffer allocate( int capacity)  The allocate() method create a int buffer of specified capacity. 
abstract IntBuffer put(int i) The put(..) method write int value at current position and increment by 1.

Buffer API:

The java.nio.Buffer class extends java.lang.Object class. It provides the following methods:

Return type Method Description
final Buffer clear() The clear() method clear the buffer. 
Int remaining() The remaining() method returns remaining element in buffer.

code

import java.nio.*;
import java.nio.IntBuffer;

public class IntBufferClear {
  public static void main(String[] arg) {
    IntBuffer intBuffer = IntBuffer.allocate(256);
    intBuffer.put(22);
    intBuffer.put(23);
    intBuffer.put(24);
    intBuffer.flip();
    System.out.println("Int value in the buffer.");
    while (intBuffer.hasRemaining()) {
      System.out.println(intBuffer.get());
    }
    intBuffer.clear();
    intBuffer.flip();
    int num = intBuffer.remaining();
    System.out.println("Number of remaining elements."+num);
    if (num == 0) {
      System.out.println("Buffer is successfully clear.");
    else {
      System.out.println("Buffer is not successfully clear.");
    }
  }
}

Output

C:\>java IntBufferClear
Int value in the buffer.
22
23
24
Number of remaining elements.0
Buffer is successfully clear.

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Posted on: August 4, 2010

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