Question

Which of the following statements is false?

a. The asterisk (*) in javac *.java indicates that all files in the current directory ending with the filename extension ".java" should be compiled
b. The javac command can compile multiple classes at once; simply list the source-code filenames after the command with each filename separated by a comma from the next
c. All statements are true
d. If the directory containing the app includes only one app’s files, you can compile all of its classes with the command javac *.java

Answer 1

The false statement is that Java filenames should be separated by commas when using the 'javac' command. In reality, spaces are used to separate filenames, not commas.Option B is the correct answer.

Step-by-step explanation:

The question is about the usage of the javac command in Java. When you use the asterisk (*) like in javac *.java, it is indeed a wildcard that tells the compiler to compile all files in the current directory ending with the ".java" extension. However, the statement that you can separate Java filenames with commas when using the javac command to compile multiple files is false. In reality, multiple Java source files are separated by spaces, not commas.

The javac command in Java plays a crucial role in compiling Java source code. The asterisk (*) usage, such as in javac *.java, employs a wildcard to instruct the compiler to compile all files in the current directory with the ".java" extension, ensuring a comprehensive compilation process. However, the assertion that Java filenames can be separated by commas when using javac to compile multiple files is inaccurate. In practice, multiple Java source files are delimited by spaces, not commas. Accurate comprehension of these syntax rules is imperative for developers to effectively compile and manage Java code, avoiding potential errors in the compilation process and ensuring the successful execution of Java programs.