Java language is a powerful and flexible programming language. It has a big hand in the development of mobile and desktop applications, big data processing, embedded systems, etc. In accordance with Oracle, the company that owns Java, runs on 3 billion devices worldwide, making Java one of the most popular programming languages.
Why should I learn Java?
Java is a platform-dependent language. We can write Java code on one platform and run it on another. Java is a universal language with a wide range of applications. It is used to develop mobile and desktop applications, big data processing, embedded systems, etc. Java is an object-oriented programming language. Contribute to code reuse.
Java is one of the most popular programming languages, mainly because of its flexibility and compatibility. Java can be used for many things including software development, mobile applications, and large-scale system development. As a developer, knowing Java will open many doors for you.
- Introduction to Java Programming
Platform Independent Java code can be written in one platform and can run on another without modification.
- Object-Oriented
Java is an object-oriented language. This helps make our Java code more flexible and reusable.
- Speed
Well-optimized Java code is almost as fast as low-level languages like C++ and much faster than Python and PHP.
Java Features
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Open Source
Java has been an open-source product since its inception and is widely available. Developers can publish the full source code for free for anyone to download, copy, and redistribute. This is usually part of the GPL, usually a license tied to open-source software. You can refer for further help to the expert Java Homework Help.
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High Performance
Java cannot be as fast as C or C++ as it’s an interpreted language. But Java can achieve high performance using a just-in-time compiler.
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Multithreading
Java’s multithreading feature allows you to write programs that can perform multiple tasks at the same time. The advantage of multithreading is that it uses the same memory and other resources to run multiple threads at the same time, such as checking for syntax errors while typing.
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Security
For security, Java is always the first choice. With the help of Java’s security features, it allows us to develop a sophisticated and virus-free system. Java programs always run in the Java runtime environment. The interaction with the operating system is close to zero, so it is safer.
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Platform Independent
It’s not similar to other programming languages. Compiled on a platform-specific machine, java is guaranteed to be a scripting language and can be executed anywhere. At compile time, the Java program is compiled into byte code. This byte code is platform-dependent and can be executed on a machine. This byte code format also provides security. Any machine with a Java runtime environment can run Java programs.
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Cross-platform
Portability makes Java code very portable. Programmers can write code on Windows and run the same code on Linux operating systems. You can take the assistance of online platforms like TopAssignmentExperts.
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Object-Oriented
In Java, everything is an object with certain data and certain behavior. As Java is based on an object model it’s easily extensible.
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Powerful
Java helps to eliminate error-prone code, focusing mainly on compile-time error checking and runtime testing. But the main areas of Java improvement are poor exception handling and memory management through the introduction of automatic garbage collection and exception handling.
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Installing Java
The first step in learning Java is to install and configure the Java environment. After entering the download page, you may see some JDK files. After downloading the required JDK files, continue to configure the environment for Java. Now you need to go to Windows advanced settings and select environment variables. You should be able to see the System Properties dialog box.
Steps to locate environment variables.
- Go to “Start” and search for “System”
- Click “System”
- Now Click “Advanced System Settings”
- Click “Environment Variables” in the “Advanced” tab.
Then select new in the system variables and enter the variable name like ‘JAVA_HOME’, and enter the full path of the Java installation directory according to your system.
The next thing you need to do is configure your environment variables. Here you need to change the path of the system variable. Under “Variable Values”, enter the following path at the end of the line: % JAVA_HOME% bin. Click “OK”.
Now to verify the installation, just run the following command in the cmd java instance. It will show the Java version installed on your system. Now you have successfully installed Java on your local system.
Tutorial: Data Type
The data type is used to represent various values stored in variables. They are mainly divided into 4 different areas:- integers, floating-point numbers, characters, and Boolean values. As you can see, there are 4 main types of data types.
The first data type is an integer that stores a value. Now, if a value contains a fraction part, it will be called a floating-point data type. If you want to store characters, use the third data type char. You can store any alphabetic character as well as special characters in Char. The final data type is a Boolean value, which stores only “true” or “false” values.
Java Tutorial: Data Operators
There are mainly 4 different types of operators, as listed below:
- Arithmetic Operator: Perform arithmetic operations such as addition, subtraction, multiplication, division, and modulus.
- Unary Operator: If you want to increment or decrement a particular value, you can use Unary operators. For example, ++ stands for increment, – – stands for decrements.
- Relational Operator: It defines some kind of relation between two entities. For example: <, >, <=, >=, !=, ==.
- Logical Operator: Logical operators are typically used with boolean values.
There is a lot of options to start for a beginner. Let’s see some of the good starting points.
Top 10 Java Projects for Beginners
- Simple Banking Application
- Email Application
- School Management System
- Student Management System
- Pong Game in Java
- Snake Game in Java
- Brick-Breaker Game in Java
- Flappy-Bird Game in Java
- ATM Interface in Java
- Text-Based Adventure-Game in Java
These are some of the good starting points. You are sure to enjoy your learning journey.
