Question

java数组中重复数只输出一次

例如读入十个0,1,1,2,2,3,3,3,3,3数输出结果为0,1,2,3

Answer 1

String id[]={"0","1","1","2","2","3","3","3","3","3"};
Set set=new HashSet();
for(int k=0;k<id.length;k++){
set.add(id[k]);
}
Iterator it = set.iterator();
String s = "";
for (; it.hasNext();) {
s += it.next() + ",";
}
System.out
.println("-----------------" + s.substring(0, s.length() - 1));

以上方法供参考，望采纳。。。

Answer 2

用map吧
如果非要自己写算法:
每读入一个和前面的比较一下
如果存在就不加入了
不难