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Core JAVA introduction and practice

Online Tutorial for Java beginners to learn basic concepts of Core Java. I have divided this tutorial into three sections.
Core JAVA introduction and practice
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What is JAVA?

    • Java is an object-oriented programming language originally developed by Sun Microsystems and released in 1995.
    • Java was originally developed by James Gosling at Sun Microsystems (which has since merge into Oracle Corporation).
    • Java programs are platform independent which means they can be run on any operating system with any type of processor as long as the Java interpreter is available on that system.
    • Java code that runs on one platform does not need to be recompiled to run on another platform, its called  "write once, run anywhere" (WORA).
    • JVM executes Java code, but is written in platform specific languages such as C/C++/ASM etc. JVM is not written in Java and hence cannot be platform independent and Java interpreter is actually a part of JVM.

Features of JAVA

  • Object Oriented - In java everything is an Object. Java can be easily expanded since it is based on the Object model.

    Platform independent - C and C++ are platform dependency languages hence the application programs written in one Operating system cannot run in any other Operating system, but in platform independence language like Java application programs written in one Operating system can able to run on any Operating system.

    Portable - being architectural neutral and having no implementation dependent aspects of the specification makes Java portable. Compiler and Java is written in ANSI C with a clean portability boundary which is a POSIX subset.

    Robust - Java makes an effort to eliminate error prone situations by emphasizing mainly on compile time error checking and runtime checking.

    Simple - Java is designed to be easy to learn. If you understand the basic concept of OOP java would be easy to master.

    Secure - With Java's secure feature it enables to develop virus-free, tamper-free systems. Authentication techniques are based on public-key encryption.

    Multi-threaded - With Java's multi-threaded feature it is possible to write programs that can do many tasks simultaneously. This design feature allows developers to construct smoothly running interactive applications.

    Interpreted - Java byte code is translated on the fly to native machine instructions and is not stored anywhere. The development process is more rapid and analytical since the linking is an incremental and light weight process.

    High Performance - With the use of Just-In-Time compilers Java enables high performance.

Where is Java being Used?

  • JSP - Java is used to create web applications like PHP and ASP, JSP(Java Server Pages) used with norman HTML tags, which helps to create dynamic web pages.

    Applets - This is another type of Java program that used within a web page to add many new features to a web browser.

    J2EE - The software Java 2 Enterprise Edition are used by various companies to transfer data based on XML structured documents between one another.

    JavaBeans - This is something like Visual Basic, a reusable software component that can be easily assemble to create some new and advanced application.

    Mobile - Besides the above technology, Java is also used in mobile devices, many kind of games and services built in Java. Today, all leading mobile service provider like Nokia, Siemens, Vodafone are using Java technology.

What You Will Need ?

Course To be Included :

    • ARRAYS


Reading Material15 Chapters with 61 Pages
Chapter1 Intoduction
Chapter2 Exception Handling
Chapter3 Multi Threading
Chapter4 String Handling
Chapter5 Methods
Chapter6 Packages
Chapter7 Interface
Chapter8 Collections
Chapter9 Control Statements
Chapter10 Arrays
Chapter11 Operators
Chapter12 Data Types
Chapter13 Variables
Chapter14 Object Oriented Programming
Chapter15 Applets
Daily Online Test20 Practice Test
Test 1 Basic Java-1
Test 2 Basic Java-2
Test 3 Basic Java-3
Test 4 Basic Java-4
Test 5 Class and method-1
Test 6 Class and method-2
Test 7 Class and method-3
Test 8 Constructor
Test 9 Inheritance
Test 10 Package and interface -1
Test 11 Package and interface -2
Test 12 Package and interface -3
Test 13 Package and interface -4
Test 14 Servlet-1
Test 15 Servlet-2
Test 16 JDBC-1
Test 17 JDBC-2
Test 18 JDBC-3
Test 19 JDBC-4
Test 20 Jsp and java package
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