Expanding an Array : Arrays « Collections Data Structure « Java

1. Java
2. Collections Data Structure
3. Arrays

Expanding an Array

 


import java.lang.reflect.Array;

public class Main {
  public static void main(String[] argv) throws Exception {
    int[] array = { 1, 2, 3 };
    Object newArray = Array.newInstance(array.getClass().getComponentType(),
        Array.getLength(array) * 2);
    System.arraycopy(array, 0, newArray, 0, Array.getLength(array));

  }
}

   
  

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