Truncates the given array to the request length. - Java Collection Framework

Java examples for Collection Framework:Array Sub Array

  1. HOME
  2. Java
  3. Collection Framework
  4. Array Sub Array

Description

Truncates the given array to the request length.

Demo Code


//package com.java2s;

public class Main {
    public static void main(String[] argv) throws Exception {
        byte[] array = new byte[] { 34, 35, 36, 37, 37, 37, 67, 68, 69 };
        int newLength = 2;
        System.out.println(java.util.Arrays.toString(truncate(array,
                newLength)));// www  .j a  va2  s .  c  om
    }

    /**
     * Truncates the given array to the request length.
     * 
     * @param array
     *            the array to be truncated.
     * @param newLength
     *            the new length in bytes.
     * @return the truncated array.
     */
    public static byte[] truncate(byte[] array, int newLength) {
        if (array.length < newLength) {
            return array;
        } else {
            byte[] truncated = new byte[newLength];
            System.arraycopy(array, 0, truncated, 0, newLength);

            return truncated;
        }
    }
}

Related Tutorials