DAY 1: Java Course Notes

OOPS:

Object Oriented Programming Structure.

It is a method of implementation in which a program is organised as a collection of object, class and methods.

Class:

Collection of object and methods.

Object:

Run time memory allocation.

Method:

Set of actions to be performed.

4 Principles of OOPS:

• Polymorphism

• Abstraction

• Inheritance

• Encapsulation

Two Standard notation or coding standards:

JAVA: Developed

1. Pascal notation:

2. Camel notation.

Pascal Notation:

Each word of the first letter should be capital.

Eg. JavaTesting.

Followed in: project name, class name.

Camel Notation:

First word of first letter small remaining each word of first letter should be capitol.

Eg. javaTestingCourse

Followed in: object name, variable name, method name.

Project-> package-> class-> method -> object

Ant : Class

a() - m

b() - m

Object Creation:

ClassName objectName= new ClassName();

Ant z=new Ant();

Method Call:

objectName.methodName();

z.a();

z.b();

To Create a Project:

File-> new-> Java project-> project name( pascal notation)

To Create a Package:

src-> right click-> package -> packagename( test. , in. , .org. )

TO Create a class:

Right click on package name-> new-> class -> class name( pascal notation)

Eg. Program;

Package org.test.tcs;

// Class

Public class CourseDetails{

//1. Type the method name and press ctrl+space bar

// javaCourse - method name

Private void javaCourse(){

system.out.println(“java course”);

}

// 2. Press ctrl+space bar and then select the method from that

Public void aPICourse(){

system.out.println(“ API Course”);

}

// enter main - ctrl+space bar

Public static void main( string[] args)

{

// Object creation

CourseDetails c= new CourseDetails();

c.javaCourse();

c.aPICourse();

}

Assignment: Day 1

QUESTION 1:

------------

     Project   :EmployeeDetails

     Package   :org.emp

     Class     :Employee 

     Methods   :empId(),empName(),empDob(),empPhone(),empEmail(),empAddress()

Description:

Create an object for employee class and call above methods also follow the all coding standards.

QUESTION 2:

------------

   Project     :CompanyDetails

   Package     :org.company

   Class       :CompanyInfo

   Methods     :companyName(),companyId(),companyAddress()

Description:

Create an object for CompanyDetails class and call above methods also follow the all coding standards.