取出数组中相同的元素
package com;
import java.util.HashSet;
import java.util.Set;
public class SetText {
public static void main(String[] args) {
int[]x={1,3,6,7,9,2,3,1,4,4,8,9,1};
Set<Integer>set=new HashSet<Integer>();
for (Integer i : x) {
set.add(i);
}
System.out.println(set);
}
}