Create copy Of array - Android java.lang

Android examples for java.lang:array copy

  1. HOME
  2. Android
  3. java.lang
  4. array copy

Description

Create copy Of array

Demo Code

import java.lang.reflect.Array;

public class Main {

  public static boolean[] copyOf(boolean[] original, int newLength) {
    boolean[] copy = new boolean[newLength];
    System.arraycopy(original, 0, copy, 0, Math.min(original.length, newLength));
    return copy;/*from ww w .  j ava2s .c  om*/
  }

  public static int[] copyOf(int[] original, int newLength) {
    int[] copy = new int[newLength];
    System.arraycopy(original, 0, copy, 0, Math.min(original.length, newLength));
    return copy;
  }

  @SuppressWarnings("unchecked")
  public static <T> T[] copyOf(T[] original, int newLength) {
    return (T[]) copyOf(original, newLength, original.getClass());
  }

  @SuppressWarnings("unchecked")
  public static <T, U> T[] copyOf(U[] original, int newLength, Class<? extends T[]> newType) {
    T[] copy = ((Object) newType == (Object) Object[].class) ? (T[]) new Object[newLength]
        : (T[]) Array.newInstance(newType.getComponentType(), newLength);
    System.arraycopy(original, 0, copy, 0, Math.min(original.length, newLength));
    return copy;
  }
}

Related Tutorials