HashMap_Class

package Hashing;

import java.util.*;

public class HashMap_Class {
    public static void main(String[] args) {
        HashMap<String, Double> MyDictionary = new HashMap<String, Double>(16);

        MyDictionary.put("Strahil",3.00);
        MyDictionary.put("Sasho", 5.00);
        MyDictionary.put("Ivan", 6.00);

        for (Map.Entry< String, Double> items : MyDictionary.entrySet()){
            System.out.printf( " Student %s has %.2f%n" , items.getKey(), items.getValue());
        }
        //REMOVE
        MyDictionary.remove("Strahil");
        System.out.println("Strahil removed.");

        //CONTAINS KEY
        System.out.printf("Is Strahil in the hash table: %b %n", MyDictionary.containsKey("Strahil"));
        //CONTAINS VALUE
        System.out.printf("Is Strahil in the hash table: %b %n", MyDictionary.containsValue(3.00));

        System.out.println("Student and marks:");

        //FOR-EACH-CYCLE :::::::::::::::: HASH-MAP
        //PRINT KEYS AND VALUES BY MAP.ENTRY() METHOD

        for (Map.Entry< String, Double> items : MyDictionary.entrySet()){
            System.out.printf( " Student %s has %.2f%n" , items.getKey(), items.getValue());
        }
    }//end of main
}//end of class