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map declaration in java

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YOU.com answered on April 27, 2020 Popularity 9/10 Helpfulness 3/10

answer map declaration in java

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map declaration in java

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

public class Main {
    public static void main(String[] args) {
        // Declare a map
        Map<String, Integer> map = new HashMap<>();

        // Add key-value pairs to the map
        map.put("apple", 1);
        map.put("banana", 2);
        map.put("orange", 3);

        // Access values using keys
        System.out.println(map.get("apple")); // Output: 1
        System.out.println(map.get("banana")); // Output: 2
        System.out.println(map.get("orange")); // Output: 3
    }
}

Popularity 9/10 Helpfulness 3/10 Language java

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Contributed on Sep 12 2023

YOU.com

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Map< String,Integer> hm =  
                        new HashMap< String,Integer>(); 
       hm.put("a", new Integer(100)); 
       hm.put("b", new Integer(200)); 
       hm.put("c", new Integer(300)); 
       hm.put("d", new Integer(400));

Popularity 10/10 Helpfulness 4/10 Language java

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Contributed on Apr 27 2020

Zealous Zebra

0 Answers Avg Quality 2/10

map in java

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MAP : is a (key-value format) 
      and keys are always unique, 
      and value can be duplicated. 
- HashTable don't have null key, sychronized(thread-safe)
- LinkedHashMap can have null key, keeps order
- HasHMap can have null key, order is not guaranteed
- TreeMap doesn't have null key and keys are sorted

Popularity 10/10 Helpfulness 3/10 Language java

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Tags: java

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Contributed on Jan 06 2021

Obedient Ocelot

0 Answers Avg Quality 2/10

map declaration in java

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