本文实例讲述了Java计算交集,差集,并集的方法。分享给大家供大家参考,具体如下:
package math; import java.util.HashSet; import java.util.Set; public class Test { public static void main(String[] args) { Setresult = new HashSet (); Set set1 = new HashSet (){{ add(1); add(3); add(5); }}; Set set2 = new HashSet (){{ add(1); add(2); add(3); }}; result.clear(); result.addAll(set1); result.retainAll(set2); System.out.println("创新互联测试结果:"); System.out.println("交集:"+result); result.clear(); result.addAll(set1); result.removeAll(set2); System.out.println("差集:"+result); result.clear(); result.addAll(set1); result.addAll(set2); System.out.println("并集:"+result); } }