Saving the source code & Execution of the byte code

For writing the source code simply NOTEPAD can be used.

Command Prompt is used for execution

• In JDK1.7 the Source code (program body in notepad) should be saved with “App.java”after the name

classnameApp.java

• In JDK1.5(older version can be still found in some institutions) the source code must be saved under the quotation marks “ ”

“classname.java”

• Compilation of source code to byte code execution of the byte code is same in both versions

Compilation of source code to byte code

javac classnameApp.java [1.7 Version]

Or

javac classname.java [1.5 Version]

Execution of the byte code

java classname

JAVA is like an advanced version of C. Therefore if you know fundamentals C programming you can easily get through JAVA. In the following posts I’m not going to put up all the key words & its relevant task, but I’ll give an idea about how they are used through simple programs.

However if your knowledge is ZERO and if you are a troll in JAVA .Don’t worry I used to be a one, couple years ago. Still I’m not a perfect character and I will never be.Because with the time we learn more and more new things.

So I recommend you to follow the website below.

http://www.tutorialspoint.com/java/index.htm