On a computer whose operating system is a recent version of Microsoft Windows, invoke Star...

On a computer whose operating system is a recent version of Microsoft Windows, invoke Start > Programs > Accessories > Command Prompt. Navigate to the directory that has the

Hello, java source code. Enter dir Hello. *

to list all files starting with "Hello". If this list includes

Hello.class

, delete that file by entering

del Hello.class

. Enter

javac Hello, java

to compile the source code. Again enter

dir Hello.*

and verify that the bytecode file,

Hello.class

, has been created. Now you can enter

java Hello

to execute the compiled program. Enter

type Hello.java

and type

Hello.class

to get a feeling for how bytecode differs from source code.