![program for compiling java program for compiling java](https://math.hws.edu/eck/cs124/javanotes3/c1/fig3.gif)
To do so, pass the class name HelloWorld as a command-line argument, as shown ~]# java HelloWorld If there are more than one Java source files in the same directory, you can either list the file names separated by spaces, or use the wildcard characters, for ~]# javac HelloWorld.java one.java ~]# javac *.java Run Java Program From Command PromptĪfter successful compilation of HelloWorld.java to HelloWorld.class to actually run the program, we use the Java interpreter, called java. Note that the Java compiler (javac) also facilitates to compile multiple. The compiler's job is to translate Java source files into "class files" that the virtual machine can execute. However, the Java virtual machine cannot execute. The Java compiler doesn't execute the Java program - that is the job of the Java virtual machine. As said earlier, the Java bytecode is the intermediate representation of HelloWorld.java program that contains instructions the Java interpreter will execute.
![program for compiling java program for compiling java](https://www.journaldev.com/wp-content/uploads/2012/12/compile-run-java-program-from-java-program-eclipse.jpg)
The javac compiler creates a file called HelloWorld.class that contains the bytecode version of the program.
![program for compiling java program for compiling java](https://slidetodoc.com/presentation_image_h/fa9be25e8268cd4bc522703287e4e8aa/image-10.jpg)
Now, compile HelloWorld.java as ~]# javac HelloWorld.java It includes the JRE (Java Runtime Environment), set of API classes, Java compiler, Webstart and additional files needed to write Java applets and applications.
Program for compiling java software#
JDK is a bundle of software needed for developing Java applications. Java compiler comes with JDK (Java Development Kit). To compile a Java program from command line we need to invoke the Java compiler by supplying javac command. Once the Java program is written and saved, first, it has to be compiled.