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**W3Schools Java Tutorial**
[Link to reference article](https://www.w3schools.com/java/default.asp)
# Java # Programming # Tutorial # W3Schools
## Introduction to Java
Java is a general-purpose programming language that is object-oriented and class-based. It was developed by Sun Microsystems in 1995 and is now one of the most popular programming languages in the world. Java is used to develop a wide variety of applications, including web applications, mobile applications, and desktop applications.
## Features of Java
Java has a number of features that make it a popular programming language, including:
* **Object-oriented programming:** Java is an object-oriented programming language, which means that it is based on the concept of objects. Objects have states and behaviors, and they can interact with each other. Object-oriented programming makes it easier to develop complex applications.
* **Platform independence:** Java code is compiled into bytecode, which can run on any platform that has a Java Virtual Machine (JVM). This means that Java programs can be developed on one platform and run on another platform without having to be recompiled.
* **Multi-threading:** Java supports multi-threading, which means that multiple threads of execution can run concurrently within the same program. This can improve the performance of applications that need to handle multiple tasks at the same time.
* **Garbage collection:** Java has a garbage collector that automatically frees up memory that is no longer being used by a program. This eliminates the need for programmers to manually manage memory, which can reduce the number of errors in a program.
## Getting Started with Java
To get started with Java, you will need to install a Java Development Kit (JDK). The JDK includes the tools you need to compile and run Java programs. You can download the JDK from the Oracle website.
Once you have installed the JDK, you can create a new Java project. You can do this using a Java IDE, such as Eclipse or IntelliJ IDEA. A Java IDE provides a number of tools to help you develop Java programs, such as code editors, debuggers, and project managers.
To write a Java program, you will need to create a class file. A class file contains the code for a Java class. You can create a class file using a Java IDE or by using the `javac` command-line tool.
Once you have created a class file, you can run it using the `java` command-line tool. The `java` command takes the name of a class file as its argument. For example, to run the `HelloWorld` class, you would use the following command:
```
java HelloWorld
```
This command will compile the `HelloWorld` class and then run it. The `HelloWorld` class will print the following message to the console:
```
Hello, world!
```
## Further Resources
* [W3Schools Java Tutorial](https://www.w3schools.com/java/default.asp)
* [Oracle Java Tutorials](https://docs.oracle.com/javase/tutorial/)
* [Java Programming for Beginners](https://www.learnjavaonline.org/)
* [Java Programming Tutorial](https://www.tutorialspoint.com/java/index.htm)
[Link to reference article](https://www.w3schools.com/java/default.asp)
# Java # Programming # Tutorial # W3Schools
## Introduction to Java
Java is a general-purpose programming language that is object-oriented and class-based. It was developed by Sun Microsystems in 1995 and is now one of the most popular programming languages in the world. Java is used to develop a wide variety of applications, including web applications, mobile applications, and desktop applications.
## Features of Java
Java has a number of features that make it a popular programming language, including:
* **Object-oriented programming:** Java is an object-oriented programming language, which means that it is based on the concept of objects. Objects have states and behaviors, and they can interact with each other. Object-oriented programming makes it easier to develop complex applications.
* **Platform independence:** Java code is compiled into bytecode, which can run on any platform that has a Java Virtual Machine (JVM). This means that Java programs can be developed on one platform and run on another platform without having to be recompiled.
* **Multi-threading:** Java supports multi-threading, which means that multiple threads of execution can run concurrently within the same program. This can improve the performance of applications that need to handle multiple tasks at the same time.
* **Garbage collection:** Java has a garbage collector that automatically frees up memory that is no longer being used by a program. This eliminates the need for programmers to manually manage memory, which can reduce the number of errors in a program.
## Getting Started with Java
To get started with Java, you will need to install a Java Development Kit (JDK). The JDK includes the tools you need to compile and run Java programs. You can download the JDK from the Oracle website.
Once you have installed the JDK, you can create a new Java project. You can do this using a Java IDE, such as Eclipse or IntelliJ IDEA. A Java IDE provides a number of tools to help you develop Java programs, such as code editors, debuggers, and project managers.
To write a Java program, you will need to create a class file. A class file contains the code for a Java class. You can create a class file using a Java IDE or by using the `javac` command-line tool.
Once you have created a class file, you can run it using the `java` command-line tool. The `java` command takes the name of a class file as its argument. For example, to run the `HelloWorld` class, you would use the following command:
```
java HelloWorld
```
This command will compile the `HelloWorld` class and then run it. The `HelloWorld` class will print the following message to the console:
```
Hello, world!
```
## Further Resources
* [W3Schools Java Tutorial](https://www.w3schools.com/java/default.asp)
* [Oracle Java Tutorials](https://docs.oracle.com/javase/tutorial/)
* [Java Programming for Beginners](https://www.learnjavaonline.org/)
* [Java Programming Tutorial](https://www.tutorialspoint.com/java/index.htm)
