Hashmap java

New hashmap java

Map<String, String> myMap = new HashMap<String, String>() {{
        put("a", "b");
        put("c", "d");
    }};

Source: stackoverflow.com

Hashmap

- HasHMap can have null key, order is not guaranteed

HashMap java

package org.o7planning.tutorial.javacollection.helloworld;

import java.util.HashMap;

public class HelloHashMap {

	public static void main(String[] args) {

		// Créer un objet HashMap qui stocke les paires des ID d'employés et des salaires.
		// Clé de chaîne: ID d'employé
		// Valeur flottante: Salaire.
		HashMap<String, Float> salaryMap = new HashMap<String, Float>();
	 

		salaryMap.put("E01", 1000f);
		salaryMap.put("E02", 12000f);
		salaryMap.put("E03", 12300f);
		salaryMap.put("E04", 1000f);
		salaryMap.put("E05", 300.5f);
		
		// Obtenir les salaires des employés 'E02'
		Float salary= salaryMap.get("E01");
		System.out.println("Salary of employee E01 = "+ salary);
		
		// Mettre à jour le salaire pour les employés 'E05'
		salaryMap.put("E05", 400f);
		
		System.out.println("Salary of employee E05 = "+ salaryMap.get("E05"));
		 
	}

}

Source: devstory.net

Hashmap java

    private static final Map<Integer, String> map = Map.of(
        1, "one",
        2, "two"
    );

Source: techiedelight.com

Similar codes

0 vote294 views1 answer
One line hashmap java
Java
1 vote340 views1 answer
Javac encoding utf-8
Java
1 vote326 views2 answers
Bukkit runnable
Java
0 vote328 views1 answer
Marshalling in java
Java
3 votes304 views2 answers
Counting repeated characters in a string in java
Java
0 vote288 views1 answer
Intelij show method information
Java
0 vote283 views1 answer
Save SQLite returned data to an object list
Java
0 vote290 views1 answer
Exit program Android
Java
0 vote286 views1 answer
How to avoid outside click of alerdialoge android
Java
5 votes284 views1 answer
Spigot title
Java