The Complete Guide to Java and Why You Should Learn It
Introduction: What is Java and Why Should I learn it?
Java is a general-purpose, high-level programming language that was originally developed in the 1990s. Java has been around for a long time and has been used to create some of the world’s most popular programs.
It is a very versatile language and can be used to do many things from developing mobile apps to creating video games. Java is also considered relatively easy to learn for beginners. It can be picked up in a few days if you have some experience with programming or scripting languages already.
Java Development Tools (JDT)
Eclipse is an open-source IDE that was originally written in Java. It is used to develop software programs in many different programming languages including Java, C++, PHP, and Python. Eclipse has built-in tools for developing web applications, desktop applications, and mobile apps.
Eclipse IDE is the development environment where you can edit your code and compile it into a JAR file. JAR Tools are features of Eclipse that help you create executable Java ARchives (JAR) files for distribution or execution on different platforms.
Java Basics
Java is a high-level programming language which is a part of the Java platform.
Java has been around for a while, but it’s still the most popular programming language in use today. It’s been around for two decades and there are still new programmers learning how to use it. It’s one of the most reliable languages out there and it has been used by numerous companies for their projects.
Some of the reasons why Java is so popular are because it’s cross-platform, easy to learn, and powerful. It can run on all major operating systems, from Windows to Linux to Macintosh OS X. You can write Java code on any operating system, no matter what you’re using.
Data Types in Java
In this article, we will explain data types in Java and see what they are and how they differ from one another.
Primitives:
The primitive data types in Java (and other languages) represent the most basic and simplest of data values. They typically correspond to some form of storage location on the computer’s memory.
There are 8 primitive data types in Java: byte, short, int, long, char, float, double & boolean.
References:
A reference is a general term for any variable that contains an address to a location on the computer’s memory which stores data of some type.
There are two kinds of references in Java: local reference and global reference. Local references refer to objects stored within a single class or method while global references refer to
Variables in Java
In Computer Science, there are many things that you need to learn about variables. In this section, we will be looking at Assignment Operators for Variables in Java. You might have seen assignment operators before, but it is always good to review them because they’ll come up in almost any programming language.
An assignment operator assigns a value to its left operand based on the value of its right operand. The basic assignment operator is = (or simply “:=”). Assigning a value to an operand stores the result of the operation in the memory location of the variable name on the left-hand side of the operator. Assignment operators can also be used with compound expressions stored in variables; if so, they are evaluated from right to left.
There are six types of assignment
Operators in Java
The arithmetic operators are used to perform calculations on variables.
Java provides the following arithmetic operators:
– Addition Operators (+)
– Subtraction Operators (-)
– Multiplication Operators (*)
– Division Operators (/ )
– Modulo Operator (%)
Objects and Classes in Java
Object Oriented Programming is the process of breaking the code into various objects that are related to each other. These objects work together in order to accomplish a specific goal.
The classes are the underlying model for an object. The concept of inheritance is when two classes share one common class in which they inherit all of its properties and methods.