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Instance methods

Theory

Static vs. Mobile: Guess the Method!"

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Consider a class 'Car' in Java. Which statements correctly differentiate the behaviors and restrictions of instance methods and static methods based on the following definitions?


public class Car {
    private static int totalCars = 0;
    private String model;
    
    public Car(String model) {
        this.model = model;
        totalCars++;
    }

    public void displayModel() {  // Instance method
        System.out.println("Model: " + this.model);
    }

    public static void displayTotalCars() {  // Static method
        System.out.println("Total cars: " + totalCars);
    }
}

Select one or more options from the list

The static method 'displayTotalCars' can be invoked using the class name, as in 'Car.displayTotalCars();'.

Static methods like 'displayTotalCars' cannot directly access instance variables like 'model'.

In the static method 'displayTotalCars', the 'this' keyword can be used to refer to 'totalCars'.

Instance methods cannot be called using the class name alone without an object, unlike static methods.

Instance methods like 'displayModel' can reference both instance variables like 'model' and static variables like 'totalCars'.

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