Chapter 11 :- File handling
Chapter 11 :- File handling Summary Storage devices of a computer system can be broadly classified into two categories: volatile storage and non-volatile Storage. Volatile storage is temporary; values stored invariables are lost when a computer is shutdown.A Java program that stores a value ina variable uses RandomAccess Memory (RAM). Apart from variables, objects and […]
Chapter 10 :- Exception handling in Java
Chapter 10 :- Exception handling in Java Summary An exception is an indication of a problem that occurs during a program’s execution,it usually signals an error.Although exceptions occur in frequently,we must be careful to handle such cases while writing the code.Errors can be broadly classified into two categories namelyCompile-time errors and Run-time errorsAcompiler isused to […]
Chapter 9 :- Working with Array and String
Chapter 9 Working with Array and String Summary An array is a variable representing a collection of homogeneous type of elements. Arrays are useful to represent vector, matrix and other multi-dimensional data. Vector is a one dimensional (1-D) data structure that can be used to store list of items like characters, numbers. Arrays are useful […]
Chapter 8 :- Classes and objects in Java
Chapter 8 :- Classes and objects in Java Summary A class contains both data (referred to as attributes), and program code Creating objects Creating an object from a class requires the following steps : Declaration : A variable (reference variable) name of type class is declared with syntax <class name> <variable name> • Instantiation : […]
Chapter 7 :- Java Basics
Chapter 7 :- Java Basics Summary Java is an object-oriented programming language developed by Sun Microsystems, a company best known for its high-end Unix workstations. Introduction to Java Java language was developed at Sun Microsystems in 1991. Java is small, fast, efficient, and easily portable to a wide range of hardware devices. also a general-purpose […]
Ch-6 Object Oriented Concept
Chapter -6 Object Oriented Concept Summary Object-oriented programming concepts started originating in the 1960s.It was developed as a way to handle the rapidly increasing size and complexity of software systems and to make it easier to modify these large and complex systems over time. Some of the popular programming languages that support object-oriented programming are […]
Chapter :- 5 Introduction to M-Commerce
Chapter :- 5 Introduction to M-Commerce Summary Mobile Commerce also knownas M-commerce. Itrefers to buyingand selling of goods or services throughthe use ofInternet enabledwireless devices such as a Mobilephone,Personal DigitalAssistant (PDAs), Smartphone, Tablet, Palmtop or any other mobile device.M-commerce provides the user withthe advantage of flexibility and ubiquity.Some of the examples of M-commerce are: Purchasing […]
Chapter :- 4 Introduction to E-Commerce
Chapter – 4 Introduction to E-Commerce Summary E-commerce can also be defined as buyingand selling ofproducts, services and informationusing electronic media like Internet.Sellingthe products through websites is the fastest growing method of trading worldwide. Many different types of products and services such as books, electronic gadgets, cars, holiday packages and many more are traded online.Electronic […]
Chapter :- 3Designing simple website using KompoZer
Chapter 3 :- Designing simple website Using Kompozer Summary 1. A website plays a very important role in a business now-a-days.It helps in promoting the business, selling the products and attracting a large number of customers.2.A website is a collection of interlinked web pages for a specific purpose.The website should be designed in such a […]
Test Paper 1 (IP)
Q.1 Based on the SQL table CAR_SALES, write suitable queries for the following: (6 marks) i. Display fuel wise average sales in the first quarter.ii. Display segment wise highest sales in the second quarter.iii. Display the records in the descending order of sales in the second quater. iv. SELECT LEFT(SEGMENT,2) FROM CAR_SALES WHERE FUEL= “PETROL”;v.SELECT […]