How To Compile Java 1

 Assumption: 

• The Java JDK has installed and Java path variable has set.
• You have a Java source code (.java file). In this example, using MyFirstJavaProgram.java source code.
  To get MyFirstJavaProgram.java, click Hello World In Java >

Step:

1. Open Command Prompt.
2. Set the directory in which the .java file is saved. In our case, the .java file is saved in C:\demo.
3. Use the following command to compile the Java program.
   javac MyFirstJavaProgram.java
   and press enter.
4. Use the following command to run the Java program:
   java MyFirstJavaProgram
   and press enter.
5. Or running a Java program using classpath option, which allows you to run a bytecode files in a same directory.
   java -cp . MyFirstJavaProgram
   and press enter.

< to learn about Open Command Prompt in step 1, click How To Launch Command Prompt

< to learn more about step 2, 

1. To set or change the current drive to C:\, click Top Command Prompt, read on How To Access The Another Drive.
2. If your working path is similar like C:\Users\Administrator , click Change Directory In Command Prompt, read on Set current directory to the root directory of the current drive..
3. If you do not have a demo folder, click Top Command Prompt, read on MKDIR, set [Folder] to demo.
4. To Set the directory, click Top Command Prompt, read on CD / CHDIR, set [path to folder] to demo\.
   

Notes:

• Directory does the exact same thing as folder.
• Path does the exact same thing as location or address.

Bibliography:

https://www.mcmaster.ca/ ( university )

https://jenkov.com/

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