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September 20, 2024 11:20
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How to iterate key-valu of a HashMap
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import java.util.HashMap; | |
import java.util.Map; | |
public class CarExample { | |
public static void main(String[] args) { | |
// Create a HashMap of cars | |
Map<String, Car> cars = new HashMap<>(); | |
cars.put("ABC123", new Car("Toyota", "Corolla")); | |
cars.put("XYZ789", new Car("Honda", "Civic")); | |
cars.put("DEF456", new Car("Ford", "Mustang")); | |
// Iterate through the HashMap | |
for (Map.Entry<String, Car> entry : cars.entrySet()) { | |
String licensePlate = entry.getKey(); | |
Car car = entry.getValue(); | |
System.out.println("License Plate: " + licensePlate + ", Car: " + car); | |
} | |
} | |
} | |
class Car { | |
private String import java.util.HashMap; | |
import java.util.Map; | |
public class CarExample { | |
public static void main(String[] args) { | |
// Create a HashMap of cars | |
Map<String, Car> cars = new HashMap<>(); | |
cars.put("ABC123", new Car("Toyota", "Corolla")); | |
cars.put("XYZ789", new Car("Honda", "Civic")); | |
cars.put("DEF456", new Car("Ford", "Mustang")); | |
// Iterate through the HashMap | |
for (Map.Entry<String, Car> entry : cars.entrySet()) { | |
String licensePlate = entry.getKey(); | |
Car car = entry.getValue(); | |
System.out.println("License Plate: " + licensePlate + ", Car: " + car); | |
} | |
} | |
} | |
class Car { | |
private String make; | |
private String model; | |
public Car(String make, String model) { | |
this.make = make; | |
this.model = model; | |
} | |
@Override | |
public String toString() { | |
return make + " " + model; | |
} | |
}make; | |
private String model; | |
public Car(String make, String model) { | |
this.make = make; | |
this.model = model; | |
} | |
@Override | |
public String toString() { | |
return make + " " + model; | |
} | |
} |
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