How to compile in java program

Of course, replace "filename" with whatever the name of your file actually is. If you receive an error, or if your program fails to run in any way, refer to the troubleshooting method. Method 2. Set your path. If you are running a simple program with all of the files in the same directory, you will probably not need to do this. However, if you are running a more complex program with files in multiple directories, you will need to tell the computer where to look for these files.

Substitute jdk1. Be sure you are entering in this command while in the directory containing your Java project. Restart the terminal afterwards. What would I do if I type in the Java filename. The code written in Notepad is correct. It is okay. You have to write for compiling : javac filename. Not Helpful 36 Helpful Once you are in the correct directory, you can compile the program by typing "javac filename.

Not Helpful 29 Helpful You can't without installing other things. Not Helpful 52 Helpful Not Helpful 34 Helpful How do I compile my Java program if the command javac is not being recognized in the command prompt?

What should I do? Living Concrete. Not Helpful 35 Helpful It's the service that compiles your Java into more computer readable code. Not Helpful 21 Helpful Make sure that you are replacing "filename" with the actual name of your. If it is still not working, there was an error in your code, check your syntax and try again. Not Helpful 19 Helpful 8. When I execute the java file after compiling, I see a message that says, "Error: couldn't find or load main class test.

Isaac keeling. I would guess you have been trying to run with "java test. Not Helpful 30 Helpful How do I run a java program when the command prompt shows that the saved file is not found?

Either you don't have java jdk on your system or the file does not exist. Not Helpful 10 Helpful 5. React Native. Python Design Patterns. Python Pillow. Python Turtle. Verbal Ability. Interview Questions. Company Questions. Artificial Intelligence. Cloud Computing. Data Science. Angular 7. Machine Learning. Data Structures. Operating System. Computer Network. Step 2 : Save the file as MyClass. You might be wondering why we named the file as MyClass, the point is, we always have to name the file the same as the name of the public class.

If you get this error, you must first set the path before compilation. Open Command Prompt CMD , go to where you installed java on your system, and locate the bin directory. Copy the full path and write it in the command line like this. Step 4 : After compilation, the. We can now run the program. To run the program, type the below command and press Enter:.

You will be able to see the result displayed on the output.