Doubles the size of an array : Auto Growth Array « Collections Data Structure « Java

1. Java
2. Collections Data Structure
3. Auto Growth Array

Doubles the size of an array

      

//package com.ryanm.droid.rugl.util;

/**
 * @author ryanm
 */
public class ArrayUtil
{
  /**
   * Doubles the size of an array
   * 
   * @param in
   * @return The new array
   */
  public static String[] grow( String[] in )
  {
    String[] na = new String[ in.length * 2 ];
    System.arraycopy( in, 0, na, 0, in.length );
    return na;
  }

  /**
   * Doubles the size of an array
   * 
   * @param in
   * @return The new array
   */
  public static long[] grow( long[] in )
  {
    long[] na = new long[ in.length * 2 ];
    System.arraycopy( in, 0, na, 0, in.length );
    return na;
  }

  /**
   * Doubles the size of an array
   * 
   * @param in
   * @return The new array
   */
  public static int[] grow( int[] in )
  {
    int[] na = new int[ in.length * 2 ];
    System.arraycopy( in, 0, na, 0, in.length );
    return na;
  }
}

   
    
    
    
    
    
  

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