• Thursday, September 4, 2014

    5. Java Creating Objects

    How to create object in Java & what its benifit.

    As i said in early lesson that objects is a instance of a class. Each instance have its own unique attribute.

    In this lesson we make two classes. First for the main method and another for a object car.
    Car have the following property:
    Its name in string. Example: "Alto", "Scorpio", " Tavera", "Audi" etc.....
    Its fuel in double. Example: 34.4 , 12.0. 839.343 etc....
    Its fuelLimit in double. Example 100.00 etc...

    It have one method which give the available fuel in that car.


    Let's begin.



    class ObjectTest
    {
          public static void main(String args[])
         {
             Car myCar=new Car();
             myCar.fuel = 25;
             myCar.carName = "Audi";
             myCar.getFuel();
              
         }


    }

    class Car
    {
         double fuel;
         double fuelLimit;
         String carName;

         public void getFuel()
        {
             System.out.println("Your car fuel is: " + fuel);
        }
     
    }

    Here fuel, fuelLimit, carName, are the variables which can store different values.

     In System.out.println("Your car fuel is: " + fuel), fuel is the variable define in class Car. Two or more string or variable or mix of it can be added by using plus sign.

    Prev:  Classes, objects and instance

    Syed Masoom Rizvi

    Author & Editor

    Hi, This is Syed Masoom Rizvi, who is continue exploring the world of programming ,programming and programming... :)

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