Working with void methods
Classes perform actions using methods, and methods do not always have to return some form of data type. You will implement a method to turn on a car's engine inside the Car class.
Este exercício faz parte do curso
Introduction to Object-Oriented Programming in Java
Instruções do exercício
- Create a
voidmethod calledturnEngineOnthat takes no parameters inside theCarclass. - Print the message
"engine is on"inside theturnEngineOnmethod. - Call the
turnEngineOnon themyCarobject instance already created for you.
Exercício interativo prático
Experimente este exercício completando este código de exemplo.
class Main {
static class Car {
String color;
String model;
int year;
Car(String color, String model, int year) {
this.color = color;
this.model = model;
this.year = year;
}
// Create the turnEngineOn method
____ ____() {
// Print out "engine is on"
____;
}
}
public static void main(String[] args) {
Car myCar = new Car("red", "camry", 2022);
// Call the turnEngineOn method on the myCar object instance
____.____;
}
}