Before you start programming with Java, you need to download and install what is called a JDK (Java Development Kit) which enables you to write and compile codes written in Java.

Long before IDEs programmers use to write Java codes with simple text editors like Notepad(Windows) and then compile and run them using the Command Prompt. But hey there are

One of the first programs that one usually writes when learning any programming language is "Hello World!". Most of the programming language have same methodology and are almost similar to each other. 
If you learn PHP you can easily understand C and vice versa and same with others, because they are related to each other. Below is the programming code for "Hello World!" in 10 different programming languages.

In order to run a Java program from the command prompt, follow the steps below carefully:

• Create a temporary folder C:\mywork.  Using Notepad or another text editor, create a small Java file HelloWorld.java with the following text:

The java application we are going to create is called a Hello World app and this app will simply display the greeting "Hello World!".

Practically almost all tutorials on java and beginner programmers have you to create this simple app as your first application, so you don't have to know something about java programming to be able to create this app.