Given the code from the Greeting.java file: public class Greeting { public static void main(String[] args) { System.out.println("Hello " + args[0]); } } Which set of commands prints Hello Duke in…

Question

Options

• Ajavac Greeting java Greeting Duke
• Bjavac Greeting.java Duke java Greeting
• Cjavac Greeting.java java Greeting Duke
• Djavac Greeting.java java Greeting.class Duke

• A
  2% (1)
• B
  7% (4)
• C
  88% (50)
• D
  4% (2)

Explanation

Option C is correct because Java requires a two-step process: first compile the .java source file with javac Greeting.java, then run the compiled bytecode with java Greeting Duke - where Duke becomes args[0], producing "Hello Duke".

Why the distractors fail:

• A - javac Greeting is wrong; the compiler requires the full filename with the .java extension.
• B - javac Greeting.java Duke attempts to compile Duke as a second source file, which doesn't exist; the argument Duke belongs at runtime, not compile time.
• D - java Greeting.class Duke is wrong; the java launcher takes the class name (Greeting), not the filename - specifying .class causes a runtime error.

Memory tip: Think of it as "compile the file, run the class" - javac needs the extension (.java), while java needs the bare class name with no extension. Runtime arguments always go after the class name, never during compilation.

No community discussion yet for this question.