摘要:
public class Test2 {public static void main(String[] args) {int [] its = {1,2,3};int [] it2 = {4,5,6};its = Arrays.copyOf(its, its.length+it2.length); //该操作只是将原来数组容量变大了,并没有进行复制 //复制的话,只能使用System.arrayCopy()进行System.out.println(its.length); } } 阅读全文