MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

/*
{three=four, two=three, four=five, one=two}
4
three : four
two : three
four : five
one : two
three : four
two : three
four : five
one : two
 */

import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;

public class MainClass {
    public static void main(String args[]) throws Exception {
        Hashtable hash = new Hashtable(89);
        hash.put("one", "two");
        hash.put("two", "three");
        hash.put("three", "four");
        hash.put("four", "five");
        System.out.println(hash);
        System.out.println(hash.size());
        Enumeration e = hash.keys();
        while (e.hasMoreElements()) {
            String key = (String) e.nextElement();
            System.out.println(key + " : " + hash.get(key));
        }
        Set set = hash.entrySet();
        Iterator it = set.iterator();
        while (it.hasNext()) {
            Map.Entry entry = (Map.Entry) it.next();
            System.out.println(entry.getKey() + " : " + entry.getValue());
        }
    }
}