摘要:
求数组int[] a = {1,2,3};a.length;求集合用a.size()我搞错过了,希望下次不会再错int[] a ={1,2,3};System.out.println(a.length);List aList = new ArrayList();aList.add("1");aList.add("2");System.out.println(aList.size());结果32 阅读全文
posted @ 2009-06-29 13:10 云之上 阅读(2035) 评论(1) 推荐(0) 编辑