MyClass.java
 

// Import the HashMap class
import java.util.HashMap;

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

    // Create a HashMap object called people
    HashMap people = new HashMap();

    // Add keys and values (Name, Age)
    people.put("John", 32);
    people.put("Steve", 30);
    people.put("Angie", 33);

    for (String i : people.keySet()) {
      System.out.println("Name: " + i + " Age: " + people.get(i));
    }
  }
}

Result:
Name: Angie Age: 33
Name: Steve Age: 30
Name: John Age: 32