Новый хэшмап Java
Map<String, String> myMap = new HashMap<String, String>() {{
put("a", "b");
put("c", "d");
}};
Fair Fly
Map<String, String> myMap = new HashMap<String, String>() {{
put("a", "b");
put("c", "d");
}};import java.util.HashMap;
import java.util.Map;
import java.util.Set;
public class HashhMap {
public static void main(String[] args){
Map<String, String> map = new HashMap<>();
map.put("myName","Kumaran");
map.put("myProgram", "Java");
map.put("Designation", "Java Developer");
Set<String> key = map.keySet();
for(String keys: key){
System.out.println(keys+ " : " +map.get(keys));
}
}
}
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"));
}
} private static final Map<Integer, String> map = Map.of(
1, "one",
2, "two"
);import java.util.HashMap; // import the HashMap class
HashMap<String, String> capitalCities = new HashMap<String, String>();