ex_linkedhashset.java

来自「JAVA_5 JAVA_5 JAVA_5 JAVA_5 JAVA_5 JAVA_」· Java 代码 · 共 26 行

package ch7;

import java.util.*;

public class Ex_LinkedHashSet {

    public static void main(String[] args) {
        HashSet hs = new HashSet();
        hs.add("SCJP");
        hs.add("SCWCD");
        hs.add("SCBCD");
        hs.add("SCMCD");
        Iterator it = hs.iterator();
        while(it.hasNext()){
            System.out.println(it.next());
        }
        LinkedHashSet lhs = new LinkedHashSet(hs);
        Iterator it2 = lhs.iterator();
        while(it2.hasNext()){
            System.out.println(it2.next());
        }

    }


}