Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.util.ArrayList;
import java.util.Collections;
import java.util.Hashtable;
import java.util.List;

public class Main {
    public static void main(String args[]) {

        Hashtable<String, String> h = new Hashtable<String, String>();
        h.put("a", "b");
        h.put("c", "d");
        h.put("e", "f");

        for (String str : h.keySet()) {
            System.out.println(str);
        }
        List<String> v = new ArrayList<String>(h.keySet());
        Collections.sort(v);

        for (String str : v) {
            System.out.println(str + " " + (String) h.get(str));
        }
    }
}