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looping through a hash map and getting the key

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hritick bhushan answered on April 26, 2020 Popularity 9/10 Helpfulness 5/10

answer looping through a hash map and getting the key

related loop through keys only in hashmap java

related iterate through hashMap by forEach loop

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looping through a hash map and getting the key

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 HashMap<Integer, Integer> table = new HashMap<>();
for(Map.Entry<Integer, Integer> key: table.entrySet()){
           System.out.println(key.getKey() + " " + key.getValue());
        }

Popularity 9/10 Helpfulness 5/10 Language java

Source: Grepper

Tags: hash java key map whatever

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Contributed on May 13 2022

hritick bhushan

0 Answers Avg Quality 2/10

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loop through keys only in hashmap java

Comment

Map<String, Object> map = ...;

for (String key : map.keySet()) {
    // ...
}

Popularity 9/10 Helpfulness 5/10 Language java

Source: stackoverflow.com

Tags: hashmap

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Contributed on Feb 21 2022

Energetic Eagle

0 Answers Avg Quality 2/10

iterate through hashMap by forEach loop

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

class Main {
  public static void main(String[] args) {

    // create a HashMap
    HashMap<Integer, String> languages = new HashMap<>();
    languages.put(1, "Java");
    languages.put(2, "Python");
    languages.put(3, "JavaScript");
    System.out.println("HashMap: " + languages);

    // iterate through keys only
    System.out.print("Keys: ");
    for (Integer key : languages.keySet()) {
      System.out.print(key);
      System.out.print(", ");
    }

    // iterate through values only
    System.out.print("\nValues: ");
    for (String value : languages.values()) {
      System.out.print(value);
      System.out.print(", ");
    }
    
    // iterate through key/value entries
    System.out.print("\nEntries: ");
    for (Entry<Integer, String> entry : languages.entrySet()) {
      System.out.print(entry);
      System.out.print(", ");
    }
  }
}

Popularity 9/10 Helpfulness 5/10 Language java

Source: www.programiz.com

Tags: foreach

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Contributed on May 21 2022

Astra Lee

0 Answers Avg Quality 2/10

loop hash map

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public static void printMap(Map mp) {
    Iterator it = mp.entrySet().iterator();
    while (it.hasNext()) {
        Map.Entry pair = (Map.Entry)it.next();
        System.out.println(pair.getKey() + " = " + pair.getValue());
        it.remove(); // avoids a ConcurrentModificationException
    }
}

Popularity 10/10 Helpfulness 4/10 Language java

Source: stackoverflow.com

Tags: hash

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Contributed on Apr 26 2020

Crowded Caiman

0 Answers Avg Quality 2/10

looping through a hash map and getting the key

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looping through a hash map and getting the key

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loop through keys only in hashmap java

iterate through hashMap by forEach loop

loop hash map

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