Java Tutorial for Beginners
2023
Introduction to Core Java
In this course, you will learn everything from the basics of Core Java to the end of Core Java. Java is one of the
top five programming languages and is widely used in enterprise application, mobile development, and web
development. This course is lengthy, but it covers all the essential topics in Core Java.
Why is Java So Famous?
Java has multiple features that make it popular in the industry. It can be used in various domains, and most of
the big companies use Java as their preferred language. Java Virtual Machine (JVM) is another technology that
allows multiple languages to run on it, making it easier to jump to different languages.
History of Java
Java was made in 1995 by Sun Microsystems and was led by the team of James Gosling. Later, Oracle bought
Sun, and now the trademark of Java belongs to Oracle. Java is getting updated every six months to make it more
powerful.
Choosing an Editor or IDE for Java
There are many editors and IDEs that you can use to write Java code. For beginners, editors like Notepad,
Wordpad, or Notepad++ can be used. But for real projects, you can use an IDE. Some of the most famous IDEs
for Java are Eclipse, IntelliJ IDEA, and NetBeans. We will be using Visual Studio Code (VS Code) in this course
because it is lightweight and has all the necessary features.
Downloading JDK and Compiler
To write and run Java code, you need to download Java Development Kit (JDK) and a compiler. You can
download JDK from the Oracle website. There are two versions of JDK - proprietary and open source. You can
choose any open-source implementation of JDK. In this course, we will be using Oracle JDK. You can download
VS Code from its official website.
Conclusion
Java is a powerful language used in various domains, and learning Core Java is essential for beginners. Choosing
an editor or IDE and downloading JDK and a compiler is necessary to start writing Java code. With this course,
you will learn all the essential topics in Core Java.
Every six months, Java releases new updates with new features, but the basic language remains the same. Java
is backward compatible, so old code will still work with new updates. Long term support (LTS) versions get
support for a longer period, so it's better to choose them over non-LTS versions. In this tutorial, we will use Java
17 as it is an LTS version. To download Java 17, go to the Java website and select the appropriate package for
your operating system.
Next, download Visual Studio Code, a popular IDE. Depending on your operating system, download the
appropriate package. Once both Java 17 and Visual Studio Code are downloaded, install them.
To verify if Java is installed, open the command prompt and type "java --version" and "javac --version". If there
are any errors, it means the path is not set. To set the path, go to the environment variables and add the bin
folder of the Java installation to the path variable.
Once everything is set up, open Visual Studio Code and create a new folder to work with. The left-hand side of
the screen shows the explorer, where you can find your project folder and files. To write your first Java code,
create a new file and start coding.
Creating a Java Project in VS Code
2023
Introduction to Core Java
In this course, you will learn everything from the basics of Core Java to the end of Core Java. Java is one of the
top five programming languages and is widely used in enterprise application, mobile development, and web
development. This course is lengthy, but it covers all the essential topics in Core Java.
Why is Java So Famous?
Java has multiple features that make it popular in the industry. It can be used in various domains, and most of
the big companies use Java as their preferred language. Java Virtual Machine (JVM) is another technology that
allows multiple languages to run on it, making it easier to jump to different languages.
History of Java
Java was made in 1995 by Sun Microsystems and was led by the team of James Gosling. Later, Oracle bought
Sun, and now the trademark of Java belongs to Oracle. Java is getting updated every six months to make it more
powerful.
Choosing an Editor or IDE for Java
There are many editors and IDEs that you can use to write Java code. For beginners, editors like Notepad,
Wordpad, or Notepad++ can be used. But for real projects, you can use an IDE. Some of the most famous IDEs
for Java are Eclipse, IntelliJ IDEA, and NetBeans. We will be using Visual Studio Code (VS Code) in this course
because it is lightweight and has all the necessary features.
Downloading JDK and Compiler
To write and run Java code, you need to download Java Development Kit (JDK) and a compiler. You can
download JDK from the Oracle website. There are two versions of JDK - proprietary and open source. You can
choose any open-source implementation of JDK. In this course, we will be using Oracle JDK. You can download
VS Code from its official website.
Conclusion
Java is a powerful language used in various domains, and learning Core Java is essential for beginners. Choosing
an editor or IDE and downloading JDK and a compiler is necessary to start writing Java code. With this course,
you will learn all the essential topics in Core Java.
Every six months, Java releases new updates with new features, but the basic language remains the same. Java
is backward compatible, so old code will still work with new updates. Long term support (LTS) versions get
support for a longer period, so it's better to choose them over non-LTS versions. In this tutorial, we will use Java
17 as it is an LTS version. To download Java 17, go to the Java website and select the appropriate package for
your operating system.
Next, download Visual Studio Code, a popular IDE. Depending on your operating system, download the
appropriate package. Once both Java 17 and Visual Studio Code are downloaded, install them.
To verify if Java is installed, open the command prompt and type "java --version" and "javac --version". If there
are any errors, it means the path is not set. To set the path, go to the environment variables and add the bin
folder of the Java installation to the path variable.
Once everything is set up, open Visual Studio Code and create a new folder to work with. The left-hand side of
the screen shows the explorer, where you can find your project folder and files. To write your first Java code,
create a new file and start coding.
Creating a Java Project in VS Code
