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扩展数组长度
//来自 nowjava.com //package com.nowjava; public class Main { public static void main(String[] argv) throws Exception { int[] data = new int[] { 34, 35, 36, 37, 37, 37, 67, 68, 69 }; int size = 2; System.out.println(java.util.Arrays .toString(expandArray(data, size))); } public static int[] expandArray(int[] data, int size) { int length = data.length; int[] copy = new int[lengt