J250511/01-JavaSE阶段代码/J20250722/Demo05_Set.java

package J20250722;

import java.util.HashSet;
import java.util.Set;

/**
 * @author WanJl
 * @version 1.0
 * @title Demo05_Set
 * @description
 * @create 2025/7/22
 */
public class Demo05_Set {
    public static void main(String[] args) {
        Set<String> set=new HashSet<>();
        set.add("Hello");
        set.add("zhangsan");
        set.add("wangwu");
        //遍历 foreach
        for(String s: set){
            System.out.println(s);
        }
    }
}