Question

//Vehicle.java

import java.util.Random;

class VehicleConstructor{

    private int speed;
    private int timeDriven;
    private int run;
    private int startSpeed; //Pradinis greitis

    public VehicleConstructor() {
        setSpeed();
        System.out.println("Vehicle");
    }

    private void setSpeed(){
        int minSpeed = 1;
        int maxSpeed = 40;

        Random random = new Random();
        this.startSpeed = random.nextInt(maxSpeed - minSpeed + 1) + minSpeed;
    }

    protected int getSpeed(){
        return startSpeed;
    }
}

class Bicycle extends VehicleConstructor{

    public void Bicycle(){
        System.out.println(getSpeed());
    }
}

public class Vehicle{
    public static void main(String[] args){
        Bicycle bicycle = new Bicycle();
    }
}

I want to create object Bicycle which extends VehicleConstructor and call method getSpeed() from parent. The problem is that i get an error:

Error: Main method not found in class Bicycle, please define the main
method as: public static void main(String[] args)

As far as i know in Java constructors are with the same name as the class, so i have

 public void Bicycle(){
        System.out.println(getSpeed());
    }

But error says that i need public static void main, and so the other classes also need to be with static, but i don’t want this. Is it possible somehow create object without need of static method in it?

Answer 1

public void Bicycle(){ //This is a method

public  Bicycle(){ //This is a constructor

Constructor’s don’t have any return type, not even void.