Introduction to File Processing

INTRODCUTION TO FILE PROCESSING(CSC012-2011/2012)
COURSE NOTES CONTENT: A STEP BY STEP APPROACH TO WRITING CODES IN JAVA SE ON NETBEANS IDE (Integrated Development Environment)

ACRONYMS AND SIMPLIFIED TIPS AT UNDERSTANDING THE BASIC FUNDAMENTALS IN JAVA

SYNTAX OF CODES AND BYTECODES

NOTIFICATIONS OF VARIABLES, IT’S USES AND PURPOSE

OPERATORS AND OPERAND
BASIC FUNDAMENTALS
 program: A set of instructions to be carried out by a computer.
 program execution: The act of carrying out the instructions contained in a program.
 programming language: A systematic set of rules used to describe computations in a format that is editable by humans.

SOME MODERN LANGUAGES
 procedural languages: programs are a series of commands
 Pascal (1970): designed for education
 C (1972): low-level operating systems and device drivers
 functional programming: functions map inputs to outputs
 Lisp (1958) / Scheme (1975), ML (1973), Haskell (1990)
 object-oriented languages: programs use interacting "objects"
 Smalltalk (1980): first major object-oriented language
 C++ (1985): "object-oriented" improvements to C
 successful in industry; used to build major OSes such as Windows
 Java (1995): designed for embedded systems, web apps/servers
 Runs on many platforms (Windows, Mac, Linux, cell phones...)
 The language taught in this textbook

WHY JAVA
 Relatively simple
 Object-oriented
 Pre-written software
 Platform independent (Mac, Windows…)
 Widely used
 #1 in popularity ie http://www.tiobe.com/index.php/content/paperinfo/tpci/index.html

First Java programs
 Let us look at the classic Hello World! in Java with the comments /**,*/
/**
* * @author Majesty */ public class HelloWorld { /** * @param args the command line arguments */ public static void main(String[] args) { // TODO code application logic here System.out.println("Hello World!"); }
}
 See