map.getkey in java

YOU.com answered on June 7, 2022 Popularity 9/10 Helpfulness 3/10

answer map.getkey in java

related java map get key from value

map.getkey in java

Comment

import java.util.HashMap;
import java.util.Map;

public class Main {
    public static void main(String[] args) {
        // Creating a HashMap
        Map<String, Integer> map = new HashMap<>();
        
        // Adding some key-value pairs to the map
        map.put("apple", 10);
        map.put("banana", 5);
        map.put("orange", 8);
        
        String key = "banana";
        
        // Checking if the key exists in the map
        if (map.containsKey(key)) {
            System.out.println("The key '" + key + "' exists in the map.");
        } else {
            System.out.println("The key '" + key + "' doesn't exist in the map.");
        }
    }
}

Popularity 9/10 Helpfulness 3/10 Language java

Source: Grepper

Link to this answer
Share Copy Link

Contributed on Sep 12 2023

YOU.com

0 Answers Avg Quality 2/10

Closely Related Answers

java map get key from value

Comment

import java.util.HashMap;
import java.util.Map;
 
class Main
{
    public static <K, V> K getKey(Map<K, V> map, V value)
    {
        return map.entrySet().stream()
                .filter(entry -> value.equals(entry.getValue()))
                .findFirst().map(Map.Entry::getKey)
                .orElse(null);
    }
 
    public static void main(String[] args)
    {
        Map<String, Integer> hashMap = new HashMap();
        hashMap.put("A", 1);
        hashMap.put("B", 2);
        hashMap.put("C", 3);
 
        System.out.println(getKey(hashMap, 2));        // prints `B`
    }
}

Popularity 10/10 Helpfulness 4/10 Language java

Source: www.techiedelight.com

Tags: get

Link to this answer
Share Copy Link

Contributed on Jun 07 2022

abdullah

0 Answers Avg Quality 2/10

map.getkey in java

Contents

More Related Answers

map.getkey in java

Closely Related Answers

java map get key from value

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.