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How to create and populate Java array of Hash tables?

Java 8Object Oriented ProgrammingProgramming

One way to create an array of hash tables is to create Hashtable objects and to assign these to a Hashtable array using curly braces:

Example

Live Demo

import java.util.Hashtable;

public class HashTableOfArrays {
   public static void main(String args[]) {
      Hashtable<String, String> ht1 = new Hashtable();
      ht1.put("Name", "Krishna");
      ht1.put("Age", "28");
      ht1.put("City", "Visakhapatnam");
      ht1.put("Phone", "9848022338");
     
      Hashtable<String, String> ht2 = new Hashtable();
      ht2.put("Name", "Raju");
      ht2.put("Age", "30");
      ht2.put("City", "Chennai");
      ht2.put("Phone", "9848033228");
     
      Hashtable<String, String> ht3 = new Hashtable();
      ht3.put("Name", "Satish");
      ht3.put("Age", "35");
      ht3.put("City", "Hyderabad");
      ht3.put("Phone", "9848023848");
      Hashtable [] hashArray = {ht1, ht2, ht3};
     
      for(int i = 0; i<hashArray.length; i++){
         System.out.println(hashArray[i]);
      }
   }
}

Output

{Name=Krishna, City=Visakhapatnam, Phone=9848022338, Age=28}
{Name=Raju, City=Chennai, Phone=9848033228, Age=30}
{Name=Satish, City=Hyderabad, Phone=9848023848, Age=35}
raja
Lakshmi Srinivas
Updated on 16-Jun-2020 09:52:15

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