Question

How to loop over HashMap values in Java

Answer 1

import java.util.Collection;
import java.util.HashMap;

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

        HashMap<String, Integer> hashmap = new HashMap<>();
        
        hashmap.put("java", 1);
        hashmap.put("c", 2);
        hashmap.put("c++", 3);
        hashmap.put("python", 4);
        hashmap.put("swift", 5);

        Collection<Integer> values = hashmap.values();
        
        for (Integer value : values) {
            System.out.println(value);
        }
    }
}
 
 
 
 
/*
run:
 
3
4
1
2
5
 
*/

 

 

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