运用反射类改变数组长度

import java.lang.reflect.Array;public class ArrayExpand {public static void main(String[] args) {int[] Test &＃61; { 1, 2, 3, 4, 5, 6,7 };Test &＃61; (int[]) expand(Test);for (int i &＃61; 0; i }public static Object expand(Object array) {int newLength&＃61;1;if (array &＃61;&＃61; null) {return null;}Class c &＃61; array.getClass();if (c.isArray()) {int len &＃61; Array.getLength(array);// get array lengthif (len >&＃61; newLength) {return array;} else {Class cc &＃61; c.getComponentType();Object newArray &＃61; Array.newInstance(cc, newLength);System.arraycopy(array, 0, newArray, 0, len);return newArray;}} else {System.out.println("is not array");throw new ClassCastException("need array");}
}
}