package cn.itcast.p4.hashset.demo;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashSet;
public class LinkedHashSetDemo {
/**
* @param args
*/
public static void main(String[] args) {
HashSet hs = new LinkedHashSet();
hs.add("hahah");
hs.add("hehe");
hs.add("heihei");
hs.add("xixii");
// hs.add("hehe");
Iterator it = hs.iterator();
while(it.hasNext()){
System.out.println(it.next());
}
}
}
package cn.itcast.p4.hashset.demo;
import java.util.HashSet;
import java.util.Iterator;
public class HashSetDemo {
/**
* @param args
*/
public static void main(String[] args) {
HashSet hs = new HashSet();
hs.add("hehe");
// hs.add("heihei");
hs.add("hahah");
hs.add("xixii");
hs.add("hehe");
Iterator it = hs.iterator();
while(it.hasNext()){
System.out.println(it.next());
}
}
}
package cn.itcast.p4.hashset.test;
import java.util.HashSet;
import java.util.Iterator;
import cn.itcast.p.bean.Person;
public class HashSetTest {
/**
* @param args
*/
public static void main(String[] args) {
HashSet hs = new HashSet();
hs.add(new Person("lisi4",24));
hs.add(new Person("lisi7",27));
hs.add(new Person("lisi1",21));
hs.add(new Person("lisi9",29));
hs.add(new Person("lisi7",27));
Iterator it = hs.iterator();
while(it.hasNext()){
Person p = (Person)it.next();
System.out.println(p);
// System.out.println(p.getName()+"...."+p.getAge());
}
}
}