Question

Write the code that creates a public class named Vehicle that has one private data member. The private data member is an integer variable named modelYear. Create two constructors: Code a constructor that has no parameters and initializes the modelYear variable to 2018. Code a constructor that has one parameter and uses that parameter value to update the modelYear variable.

Answer 1

Following are the program in java

public class Vehicle // class vehicle of type public

{

private int modelYear;

Vehicle() // no parameters

{

modelYear=2018;

}

vehicle(int t) // update the value of modelYear

{

modelYear=t;

}

public static void main(String args[]) // main function

{

vehicle ob=new vehicle();// creating instance

vehicle ob1=new vehicle(45);

}

}

Step-by-step explanation:

Here we create a private data member i.e modelYear of integer type .

We create default constructor and initializes modelYear variable with 2018.

we create a parametrized constructor which update the value of modelYear variable.

From the main function we call both the constructors.