- #Compiling java source file with name main install#
- #Compiling java source file with name main software#
- #Compiling java source file with name main code#
The class path can be set using either the -classpath option with the javac compiler command and java interpreter command, or by setting the CLASSPATH environment variable. Note: Part of the configuration process for setting up the Java platform is setting the class path. The Java compiler is invoked at the command line on Unix and DOS shell operating systems as follows: javac ExampleProgram.java Compiling a Java program means taking the programmer-readable text in your program file (also called source code) and converting it to bytecodes, which are platform-independent instructions for the Java VM.
#Compiling java source file with name main code#
Here is the ExampleProgram.java source code file if you do not want to type the program text in yourself.Ī program has to be converted to a form the Java VM can understand so any computer with a Java VM can interpret and run the program. Java programs are case sensitive, so if you type the code in yourself, pay particular attention to the capitalization. So, using the text editor of your choice, create a text file with the following text, and be sure to name the text file ExampleProgram.java. The easiest way to write a simple program is with a text editor. Note: Make sure you have the Java platform installed and configured for your system before you try to write and run the simple program presented next.
#Compiling java source file with name main install#
The download page contains the information you need to install and configure the Java platform for writing and running Java programs.
#Compiling java source file with name main software#
You can choose between the Java® 2 Platform software for Windows 95/98/NT or for Solaris. The Java platform is available free of charge from the Java web site. This means that any computer system with the Java VM installed can run Java programs regardless of the computer system on which the applications were originally developed.įor example, a Java program developed on a Personal Computer (PC) with the Windows NT operating system should run equally well without modification on a Sun Ultra workstation with the Solaris operating system, and vice versa.īefore you can write and run the simple Java program in this lesson, you need to install the Java platform on your computer system. Rather than running directly on the native operating system, the program is interpreted by the Java VM for the native operating system. If you are familiar with Visual Basic or another interpreted language, this concept is probably familiar to you.
Java programs are run (or interpreted) by another program called the Java VM. The console printing capability is provided in the API ready for you to use you supply the text to be printed. The simple program in this lesson uses a Java API to print a line of text to the console.
They let you add ready-made and customizable functionality to save you programming time. Java APIs are libraries of compiled code that you can use in your programs. The Java platform consists of the Java application programming interfaces (APIs) and the Java 1 virtual machine (JVM).