集合操作--交集,并集,差集

[java]代码库

package s0222交集并集差集;

import java.util.Set;
import com.google.common.collect.Sets;
import com.google.common.collect.Sets.SetView;

public class Main {

	public static void main(String[] args) {
	   Set<Integer> set1=Sets.newHashSet(1,2,3,4,5,6,7);
	   Set<Integer> set2=Sets.newHashSet(1,5,3,4,0,15,8);
	   
	 //交集
       SetView<Integer> sv1=Sets.intersection(set1, set2);
       System.out.println("\n"+"交集为:");
       sv1.forEach(element->System.out.print(element+","));

     //差集
       SetView<Integer> sv2=Sets.difference(set1, set2);  
       System.out.println("\n"+"差集为:");
       sv2.forEach(element->System.out.print(element+","));
       
     //并集
       SetView<Integer> sv3=Sets.union(set1, set2);  
       System.out.println("\n"+"并集为:");
       sv3.forEach(element->System.out.print(element+","));
	}

}