import java.util.*;
public class hashmapeg3{
public static void main(String args[]){
HashMap<Integer,String> map=new HashMap<Integer,String>();//Creating HashMap
System.out.println("Initial HashMap: " + map);
map.put(1,"Cat"); //Put elements in Map
map.put(2,"Dog");
map.put(3,"Markhor");
map.put(4,"Peacock");
System.out.println("HashMap after put(): ");
for(Map.Entry m : map.entrySet()){
System.out.println(m.getKey()+" "+m.getValue());
}
}
}
import java.util.HashMap;
class Main {
public static void main(String[] args) {
// create a hashmap
HashMap<String, Integer> numbers = new HashMap<>();
System.out.println("Initial HashMap: " + numbers);
// put() method to add elements
numbers.put("One", 1);
numbers.put("Two", 2);
numbers.put("Three", 3);
System.out.println("HashMap after put(): " + numbers);
}
}
// Java program to demonstrate
// the working of Map interface
import java.util.*;
class Main {
public static void main(String args[])
{
// Default Initialization of a
// Map
Map<Integer, String> hashmap1 = new HashMap<>();
// Initialization of a Map
// using Generics
Map<Integer, String> hashmap2= new HashMap<Integer, String>();
// Inserting the Elements
hashmap1.put(1, "Apple");
hashmap1.put(2, "Banana");
hashmap1.put(3, "Mango");
hashmap2.put(new Integer(1), "Mango");
hashmap2.put(new Integer(2), "Apple");
hashmap2.put(new Integer(3), "Banana");
System.out.println(hashmap1 +"
");
System.out.println(hashmap2);
}
}