Practice Set For Basic OOPs Concept:

 

(Note: comments code and then run for each problem.)

Problems-

1. Create a class Employee with the following properties and methods:

Salary (property) (int)

getSalary (returning int)

name(property) (String)

getName(Reurning String)

setName(changing the name)

2. Create a class cellphone with methods to print ringing..., vibrating...., and calling friends....etc.

3. Create a class with a method to initiate its side, calculating area, perimeter, etc. 

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Code:

package Com.Suryawanshi;

    class Employee{
        int Salary;
        String name;

        public int getSalary(){
            return Salary;
        }

        public String getName(){
            return name;
        }

        public void  setName(String n){
             name = n ;
        }
    }

    class CellPhone{
        public void ring(){
            System.out.println("Ringing........");
        }

        public void vibrate(){
            System.out.println("Vibrating.......");
        }

        public void callFriend(){
            System.out.println("Calling Abhay.......");
        }
    }

    class Square{
        int side;
        public int squareArea(){
            return side*side;
        }

        public int squarePerimeter(){
            return 4*side;
        }
    }

    public class PracticeSetForBasicOPPs {
        public static void main(String[] args) {
    //      Problem 01
            Employee abhay = new Employee();

            abhay.setName("Abhay Suryawanshi");
            System.out.println(abhay.getName());

            abhay.Salary = 15000;
            System.out.println(abhay.getSalary());

//            Problem 02
            CellPhone iphone = new CellPhone();
            iphone.ring();
            iphone.vibrate();
            iphone.callFriend();

//            Problem 03
            Square sq = new Square();
            sq.side = 5;
            System.out.println(sq.squareArea());
            System.out.println(sq.squarePerimeter());

        }
    }
OutPut:
Abhay Suryawanshi
15000
----------------------------
Ringing........
Vibrating.......
Calling Abhay.......
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25
20