Whats the point of Spring's MultiValueMap?

Hello everyone. I came across Spring's MultiValueMap and started wondering whats the point of it? How is it better than old school way?

Map<String, List<String>> myMap1 = new HashMap<String, List<String>>();
    List<String> citiesInUSA = new ArrayList<>();
    citiesInUSA.add("New York");
    citiesInUSA.add("Los Angeles");

    List<String> citiesInUK = new ArrayList<>();
        citiesInUK.add("London");
        citiesInUK.add("Manchester");

    myMap1.put("USA", citiesInUSA);
    myMap1.put("UK", citiesInUK);


    System.out.println(myMap1);

Map<String, List<String>> myMap1 = new HashMap<String, List<String>>();
    List<String> citiesInUSA = new ArrayList<>();
    citiesInUSA.add("New York");
    citiesInUSA.add("Los Angeles");

    List<String> citiesInUK = new ArrayList<>();
        citiesInUK.add("London");
        citiesInUK.add("Manchester");

    myMap1.put("USA", citiesInUSA);
    myMap1.put("UK", citiesInUK);


    System.out.println(myMap1);

Instead of List, u can use collection, if u want to add new city, you just add it to the list. Gemini seems to be too stupid to understand my point. So id like to ask real people haha

JC|HCL

Java Community | Help. Code. Learn.•7mo ago•

59 replies

bambizas19

Whats the point of Spring's MultiValueMap?

Hello everyone. I came across Spring's MultiValueMap and started wondering whats the point of it? How is it better than old school way?

Map<String, List<String>> myMap1 = new HashMap<String, List<String>>();
    List<String> citiesInUSA = new ArrayList<>();
    citiesInUSA.add("New York");
    citiesInUSA.add("Los Angeles");

    List<String> citiesInUK = new ArrayList<>();
        citiesInUK.add("London");
        citiesInUK.add("Manchester");

    myMap1.put("USA", citiesInUSA);
    myMap1.put("UK", citiesInUK);


    System.out.println(myMap1);

Map<String, List<String>> myMap1 = new HashMap<String, List<String>>();
    List<String> citiesInUSA = new ArrayList<>();
    citiesInUSA.add("New York");
    citiesInUSA.add("Los Angeles");

    List<String> citiesInUK = new ArrayList<>();
        citiesInUK.add("London");
        citiesInUK.add("Manchester");

    myMap1.put("USA", citiesInUSA);
    myMap1.put("UK", citiesInUK);


    System.out.println(myMap1);

Instead of List, u can use collection, if u want to add new city, you just add it to the list. Gemini seems to be too stupid to understand my point. So id like to ask real people haha

Whats the point of Spring's MultiValueMap?

Whats the point of Spring's MultiValueMap?

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