Suppose you are at an operating system command line, and you are going to use the following command to compile a program:
javac MyClass.java
Before entering the command, you must
A) close all other Windows on your computer system.
B) make sure you are in the same directory or folder where the MyClass.java file is located.
C) execute the java.sun.com program.
D) save the program with the .comp extension.

Question

Suppose you are at an operating system command line, and you are going to use the following command to compile a program: 
javac MyClass.java
Before entering the command, you must
A) close all other Windows on your computer system.
B) make sure you are in the same directory or folder where the MyClass.java file is located.
C) execute the java.sun.com program.
D) save the program with the .comp extension.

Quizplus · Accepted Answer

To compile a Java program using the javac command, you must be in the directory or folder where the source code file (MyClass.java) is located. Therefore, option B is the correct answer. Option A is not required, and option C is not relevant to the task at hand. Option D suggests saving the program with a .comp extension, which is incorrect since the compiled file will have a .class extension.

Suppose You Are at an Operating System Command Line, and You