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iterate thrpugh hasmap

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Motionless Macaw answered on April 13, 2020 Popularity 8/10 Helpfulness 5/10

answer iterate thrpugh hasmap

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iterate thrpugh hasmap

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for (Map.Entry<Integer, Integer> entry : hm.entrySet()) {
            int a=entry.getKey();
            int b=entry.getValue();
}

Popularity 8/10 Helpfulness 5/10 Language java

Source: Grepper

Tags: iterate java

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Contributed on Jun 04 2022

Motionless Macaw

0 Answers Avg Quality 2/10

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java iterate through hashmap

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for (Map.Entry<String, String> entry : yourHashMap.entrySet()) {
	System.out.println(entry.getKey() + " = " + entry.getValue());
}

Popularity 10/10 Helpfulness 10/10 Language java

Source: Grepper

Tags: hashmap

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Contributed on Apr 13 2020

Rubahn Die U-Bahn

0 Answers Avg Quality 2/10

Hashmap iteration

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// Java program to demonstrate iteration over
// Map.entrySet() entries using for-each loop
 
import java.util.Map;
import java.util.HashMap;
 
class IterationDemo
{
    public static void main(String[] arg)
    {
        Map<String,String> gfg = new HashMap<String,String>();
     
        // enter name/url pair
        gfg.put("GFG", "geeksforgeeks.org");
        gfg.put("Practice", "practice.geeksforgeeks.org");
        gfg.put("Code", "code.geeksforgeeks.org");
        gfg.put("Quiz", "quiz.geeksforgeeks.org");
         
        // using for-each loop for iteration over Map.entrySet()
        for (Map.Entry<String,String> entry : gfg.entrySet())
            System.out.println("Key = " + entry.getKey() +
                             ", Value = " + entry.getValue());
    }
}

Popularity 10/10 Helpfulness 5/10 Language java

Source: www.geeksforgeeks.org

Tags: hashmap

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Contributed on Mar 22 2022

Zenon Codes

0 Answers Avg Quality 2/10

iterating over a hashmap

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for(Map.Entry<String, Integer> entry : hashMap.entrySet()) {
    String key = entry.getKey();
    Integer value =  entry.getValue();
    //do something with the key and value
}

Popularity 10/10 Helpfulness 5/10 Language java

Source: www.baeldung.com

Tags: hashmap

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Contributed on Nov 19 2020

bae

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

iterate hashmap entries

Comment

Map<Character, String> charType
            = new HashMap<Character, String>();
 
        // Inserting data in the hash map.
        charType.put('J', "Java");
        charType.put('H', "Hibernate");
        charType.put('P', "Python");
        charType.put('A', "Angular");
 
        // Iterating HashMap through forEach and
        // Printing all. elements in a Map
        charType.forEach(
            (key, value)
                -> System.out.println(key + " = " + value));
		
		// or 
		// using for loop to iterate the map entry sets
		for (Map.Entry<String,String> mapElement : charType.entrySet()) {
            String key = mapElement.getKey();
 
            // Adding some bonus marks to all the students
            String value = mapElement.getValue();
 
            // Printing above marks corresponding to
            // students names
            System.out.println(key + " : " + value);
        }

Popularity 8/10 Helpfulness 3/10 Language java

Source: www.geeksforgeeks.org

Tags: hashmap

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Contributed on Oct 19 2022

Meng Yuan

0 Answers Avg Quality 2/10

iterate thrpugh hasmap

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