This command compiles the StudentsInsert.java source file and places the. javac -d classes src et\codejava\StudentsInsert.java. To run the compiled version of the HelloWorld program, on the command line simply type:ĭo not add the ".class" extention to the name the Java interpreter will already be able to locate the file based on the class name you provided, and adding the extention incorrectly will simply confuse it. Open command prompt and move the current directory to the StudentProgram. Your first impression of this program is probably "This is really long just to display a line of text." While this may be true compared to other programming languages, this program shows a lot about the Java programming language, way beyond simply displaying a line of text. Remember that Java is case-sensitive, so even when you compile your program, you have to make sure you are typing in the file name exactly.Ĭompiling the program will produce the file HelloWorld.class, the JVM version of your program. In such an environment, you edit, compile, and even run programs while you are creating and debugging them. To run your program that you’ve just compiled type the command below in terminal: java filename. Now to compile use this command from the terminal javac filename. Write a java program and save the file as filename.
#Compiling java code in linux terminal install#
Compile the program using the command javac HelloWorld.java. In the PC or Macintosh world, you are probably accustomed to an IDE or Integrated Development Environment for creating, compiling, and loading Java programs. Just follow these simple steps: From Terminal install open jdk sudo apt-get install openjdk-7- jdk. Although later in the semester, we will be using Eclipse for development, these instructions will assume that you are using Emacs as your text editor and compiling directly from the terminal.
Since this is the first time that many of you are developing Java programs, this brief set of instructions should help you get started.
to go up one directory) to navigate to the directory where HelloWorld.java was saved. Getting Started Writing and Compiling Java Code.
Go to your console window (in Windows, go to the start menu and click "run", then type "cmd.exe" in Linux, open a terminal). The syntax is as follows if the source code is in several files (such as light.c, sky.c, fireworks.c): cc light.c sky.c fireworks.c -o executable C++ syntax is as follows if the source code is in several files: g++ ac.C bc.C file3.C -o my-program-name See gcc(1) Linux and Unix man page for more information. Type this program up in your text editor and save it as HelloWorld.java. Public class HelloWorld Compiling the Program