Displaying Hash Table Contents : Hashtable Basics « Collections « Java Tutorial

1. Java Tutorial
2. Collections
3. Hashtable Basics

The Hashtable class overrides the toString() method of the Object class

public String toString()

import java.util.Hashtable;

public class MainClass {
  public static void main(String[] s) {
    Hashtable table = new Hashtable();
    table.put("key1", "value1");
    table.put("key2", "value2");
    table.put("key3", "value3");

    System.out.println(table);
  }
}

{key3=value3, key2=value2, key1=value1}