CODE EXAMPLE FOR JAVA

Hashmap iteration

// 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());
    }
}