How to Compile a Java File Using javac

javac command is used to compile a .java file. You can directly run javac in command prompt if environment variable is set correctly.

Best way to check it by executing javac command, and if system cannot find javac then you have to set environment variable.

How to compile a java file using javac command.

Example:

c:\jdk\appdemo> javac Testfile.java

Program Output:

Testfile.java compile successfully.