hashtabledemo.java

来自「java的书上例子」· Java 代码 · 共 24 行

//例15-7. HashTableDemo.Java
import java.util.*;
import java.io.*;

public class HashTableDemo {
	public static void main(String[] args) {
		Hashtable ht = new Hashtable();
		Hashtable tempHt = new Hashtable();
		tempHt.put("1","one");
		tempHt.put("tow",new Long(2));
		ht.put("1",new Integer(1));
		ht.put(new File("test.txt"),"2");
		ht.put(new Byte((byte)3),"three");
		ht.put("four",new Double(4.0));
		ht.put(tempHt,"hashtable");
		Enumeration e = ht.keys();
		while ( e.hasMoreElements() ) {
			Object k = e.nextElement();
			Object v = ht.get(k);
			System.out.print(k+"="+v+"  ");
		}
	}
}