All Languages >> Java >> how to iterate hashmap in java

“how to iterate hashmap in java” Code Answer

how to iterate hashmap in java

java by Bright Buzzard on Apr 13 2020 Donate

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

how to iterate hashmap in java

java by Poor Polecat on Jun 06 2020 Donate

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

map.forEach((k, v) -> {
    System.out.format("key: %s, value: %d%n", k, v);
});

how to iterate hashmap in java

java by The Red Five on May 06 2020 Donate

map.forEach((k, v) -> {
    System.out.format("key: %s, value: %d%n", k, v);
});

how to iterate hashmap in java

java by Doubtful Deer on May 01 2020 Donate

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
    }
}

Source: stackoverflow.com

how to iterate hashmap in java

java by Healthy Herring on May 18 2020 Donate

// 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()); 
    } 
}

Source: www.geeksforgeeks.org

how to iterate hashmap in java

java by Tough Trout on Feb 21 2020 Donate

// Java program for traversing 
// through a hashmap using for-each loop 
  
import java.util.*; 
  
class GfG { 
    public static void main(String[] args) 
    { 
  
        // Consider the hashmap containing 
        // student name and their marks 
        HashMap<String, Integer> hm =  
                     new HashMap<String, Integer>(); 
  
        // Adding mappings to HashMap 
        hm.put("GeeksforGeeks", 54); 
        hm.put("A computer portal", 80); 
        hm.put("For geeks", 82); 
  
        // Printing the HashMap 
        System.out.println("Created hashmap is" + hm); 
  
        // Loop through the hashmap 
        System.out.println("HashMap after adding bonus marks:"); 
  
        // Using for-each loop 
        for (Map.Entry mapElement : hm.entrySet()) { 
            String key = (String)mapElement.getKey(); 
  
            // Add some bonus marks 
            // to all the students and print it 
            int value = ((int)mapElement.getValue() + 10); 
  
            System.out.println(key + " : " + value); 
        } 
    } 
}

“how to iterate hashmap in java” Code Answer

Java queries related to “how to iterate hashmap in java”

Learn how Grepper helps you improve as a Developer!

All Java Answers

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.