Create a class Car and instantiate it 3 times and display all 3 car information .

Code :

Car.java

/**
 * Created by PAPAN on 2/2/2017.
 *
 * Create a class Car and instantiate it 3 times and display all 3 car information
 */
class Car {
    String name;
    String color;
    double maxSpeed;
    double length;
    double weight;

    public void start(){
        System.out.println(name+" started !!!");
    }

    public void move(){
        System.out.println(name+" moving !!!");
    }

    public void stop(){
        System.out.println(name+" stopped !!!");
    }


    public void carDetails(){
        System.out.println("\n --- Car Details --- \n\tName : 
            "+name+"\n\tColor : "+color+"\n\tLength " +
                ": "+length+" cms"+"\n\tWeight : "+weight+" lbs"+
                    "\n\tMax Speed : "+maxSpeed+" kpm\n");
    }
}

CarTest.java

/**
 * Created by PAPAN on 2/2/2017.
 */
class CarTest {
    public static void main(String[] papan){
        Car car1=new Car();
        car1.name="Audi R8";
        car1.color="Red";
        car1.weight=1450;
        car1.length=175;
        car1.maxSpeed=450;

        car1.carDetails();
        car1.start();
        car1.move();
        car1.stop();

        Car car2=new Car();
        car2.name="BMW i8";
        car2.color="Blue";
        car2.weight=1550;
        car2.length=185;
        car2.maxSpeed=350;

        car2.carDetails();
        car2.start();
        car2.move();
        car2.stop();


        Car car3=new Car();
        car3.name="Mclaren P1";
        car3.color="Black";
        car3.weight=1670;
        car3.length=145;
        car3.maxSpeed=550;

        car3.carDetails();
        car3.start();
        car3.move();
        car3.stop();

    }
}

Output :

— Car Details —
Name : Audi R8
Color : Red
Length : 175.0 cms
Weight : 1450.0 lbs
Max Speed : 450.0 kpm

Audi R8 started !!!
Audi R8 moving !!!
Audi R8 stopped !!!

— Car Details —
Name : BMW i8
Color : Blue
Length : 185.0 cms
Weight : 1550.0 lbs
Max Speed : 350.0 kpm

BMW i8 started !!!
BMW i8 moving !!!
BMW i8 stopped !!!

— Car Details —
Name : Mclaren P1
Color : Black
Length : 145.0 cms
Weight : 1670.0 lbs
Max Speed : 550.0 kpm

Mclaren P1 started !!!
Mclaren P1 moving !!!
Mclaren P1 stopped !!!

 

Create Employee class with at least 5 data member and 1 behavior and 3 different overloaded constructor., create 3 objects using different constructor to store 3 different employee details and display all  the employees details.

Code :

Employee.java

/**
 * Created by PAPAN on 2/1/2017.
 *
 * Create Employee class with at least 5 data member and
 * 1 behaviour and 3 different overloaded constructor.,
 * create 3 objects using different constructor to store
 * 3 different employee details and display all  the employees details.
 *
 */
class Employee {
    int id;
    int departmentID;
    int mobileNo;
    double salary;
    String name;
    String emailID;

    public Employee(){
         this.id=-1;
         this.departmentID=-1;
         this.name="Not specified";
         this.mobileNo=-1;
         this.salary=-1;
         this.emailID="Not specified";
    }

    public Employee(int id,int departmentID,String name){
        this();
        this.id=id;
        this.departmentID=departmentID;
        this.name=name;
    }

    public Employee(int id,int departmentID,String name,double salary,int mobileNo,String emailID){
        this(id,departmentID,name);
        this.salary=salary;
        this.mobileNo=mobileNo;
        this.emailID=emailID;
    }

    public void doSomething(){
        if(id!=-1)
          System.out.println(name+" is doing something...");
    }

    public void showEmployeeDetails(){
        System.out.println("\nEmoployee Details :\n\tName : "+name+"\n\tEmployee ID : "+id+"\n\tDepartment ID : "+departmentID);
        System.out.println("Contact Details : \n\tMoblie No : "+mobileNo+"\n\tEmail ID : "+emailID);
        System.out.println("Salary : Rs "+salary);
    }
}

EmployeeTest.java

/**
 * Created by PAPAN on 2/1/2017.
 */
class EmployeeTest {
    public static void main(String[] papan){
        Employee emp1=new Employee(110,10001,"Rahul Sharma",
                45600,789456123,"rahul@gmail.com");
        emp1.showEmployeeDetails();
        emp1.doSomething();

        Employee emp2=new Employee(120,10002,"Nishant Jha");
        emp2.showEmployeeDetails();
        emp2.doSomething();

        Employee emp3=new Employee();
        emp3.showEmployeeDetails();
        emp3.doSomething();
    }
}

Output :

Emoployee Details :
Name : Rahul Sharma
Employee ID : 110
Department ID : 10001
Contact Details :
Moblie No : 789456123
Email ID : rahul@gmail.com
Salary : Rs 45600.0
Rahul Sharma is doing something…

Emoployee Details :
Name : Nishant Jha
Employee ID : 120
Department ID : 10002
Contact Details :
Moblie No : -1
Email ID : Not specified
Salary : Rs -1.0
Nishant Jha is doing something…

Emoployee Details :
Name : Not specified
Employee ID : -1
Department ID : -1
Contact Details :
Moblie No : -1
Email ID : Not specified
Salary : Rs -1.0