Introduction to BlueJ and JDK:

JDK:- The Java Development Kit (JDK) is a software development environment used for developing Java applications and applets. It includes the Java Runtime Environment (JRE), an interpreter/loader (java), a computer (javac), an archiever (jar), a documentation generator (javadoc) and other tools needed in Java development.

1. How to download JDK software:         

• Open any browser in your system like Google Chrome.
• Enter the following link given below;

    www.oracle.com/technetwork/java/javase/downloads/index.html

• Download the latest version of JDK software using this link.

BLUEJ:- BlueJ is a free Java environment from Monash University, Australia. It is a window based platform for Java Development Kit (JDK). It is necessary to install JDK before installing BlueJ.

1. How to download BlueJ software:

• Open Google Chrome in your laptop or computer.
• Enter the following link given below;

https://www.bluej.org/

• Download the latest version of BlueJ software using this link.

JAVA

Java is both a programming language and a platform. Like any other programming language, you can use Java to write or create various types of computer applications. Thus, Java fits the definition of a programming language. Java is also a platform for application development. The world platform generally is used to refer to some combination of hardware and system software e.g., operating system Windows Vista or Intel Pentium V or Windows NT or DEC or the latest versions of Windows or Linux operating system like Windows 7, 8, 8.1 and even Windows 10. The Java Platform is a new software platform different from many other platforms ; it is designed to deliver and run highly interactive , dynamic and secure applications on networked computer systems. We are not going into further details of Java platform as it is beyond the scope of this book.

HISTORY OF JAVA

Do you know that Java was not developed keeping in mind the World Wide Web? Originally, Java started as an elite project (code named Green) to find a way of allowing different electronic devices such as TV-top boxes and controllers to use a common language. This language for electronic devices was originally named Oak but failed a niche despite its potential. In the following lines, the history of Java can be found out in the Java timeline :

Programming Language and its Applications

A programming language is a formal language which comprises a set of instructions used to produce various kinds of output. Programming languages are used to create programs that implement specific algorithms.

Thousands of different programming languages have been created, mainly in the computer field, and many more still are being created every year. Many programming languages require computation to be specified in an imperative form (i.e., as a sequence of operations to perform) while other languages use other forms of program specification such as the declarative form (i.e. the desired result is specified, not how to achieve it).

Programmers use programming languages to communicate with computers. Many different languages exist, and each one has its own unique features, though they all share some similarities. Because each language is different, each may be best suited for a certain purpose or purposes within certain industries. Some programming languages are used to create programs to solve problems or interpret data. Other programming languages are more suitable for making create software or apps that entertain. With a strong need for unique and diverse programming languages, it is virtually impossible to create a single universal programming language that meets all needs. Programming languages are often revised and even combined with other languages over time, evolving to meet our changing technological needs.

PROLOGUE

Hello guys, I'm Raghvendra Singh and this is my personal blog. Here you can find everything about programming languages like Java, C language, C++, Python and many more. All your problems will be solved and for doubts you can contact me at my email id and I will clear your doubts as soon as possible.

Email: raghvendrasingh0898@gmail.com

Date: 24th July, 2018