package Collection;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Iterator;
public class HashTableTest {
public static void main(String[] args) {
Hashtable hashTable=new Hashtable();
hashTable.put("1", "1");
hashTable.put("3", "3");
hashTable.put("2", "2");
hashTable.put("4", "4");
//是倒åºçš„ï¼Œå› ä¸ºæºç ä¸åˆ¤æ–就是--æ¥åˆ¤æ–数组ä¸æ˜¯å¦æœ‰å€¼çš„
Enumeration enumeration=hashTable.elements();
while(enumeration.hasMoreElements()){
System.out.println(enumeration.nextElement());
}
Iterator iterator=hashTable.keySet().iterator();
while(iterator.hasNext()){
System.out.println(iterator.next());
}
}
}