Write a Java program to get a set view of the keys contained in this map

This program uses a HashMap to store key-value pairs of Integer and String data types. It then retrieves a Set view of the keys in the HashMap using the keySet() method, and prints the Set view to the console.

A HashMap hash_map is created with Integer keys and String values.
Key-value pairs are added to the HashMap using the put() method.
The keySet() method is used to retrieve a Set view of the keys in the HashMap, which is assigned to the keyset variable.
The Set view of the keys is printed to the console using the println() method.

Source Code

import java.util.*;  
public class GetSet_ViewKeys
{  
	public static void main(String args[])
	{ 
		HashMap<Integer,String> hash_map = new HashMap<Integer,String>();  
		hash_map.put(1, "Blue");
		hash_map.put(2, "Green");
		hash_map.put(3, "Pink");
		hash_map.put(4, "White");
		hash_map.put(5, "Red");
		hash_map.put(6, "Black");
		hash_map.put(7, "Orange");
 
		Set keyset = hash_map.keySet();
		System.out.println("Key set values are : " + keyset);  
	}
}

Output

Key set values are : [1, 2, 3, 4, 5, 6, 7]

Write a Java program to get a set view of the keys contained in this map

Source Code

Output

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