Given: MainTest.java: public class MainTest { public static void main(int[] args) { System.out.println("int main " + args[0]); } public static void main(Object[] args) { System.out.println("Object…

Question

Options

• Aint main 1
• BObject main 1
• CString main 1
• DCompilation fails
• EAn exception is thrown at runtime

• A
  2% (1)
• B
  11% (5)
• C
  81% (38)
• D
  2% (1)
• E
  4% (2)

Explanation

Option C is correct because the JVM always uses public static void main(String[] args) as the program entry point - this is a fixed contract, not subject to overload resolution. Command-line arguments (1 2 3) are always passed as String[], making args[0] the String "1", so the output is String main 1.

Why the distractors are wrong:

• A - main(int[]) is never called by the JVM as an entry point, and command-line args cannot be passed as primitives anyway.
• B - main(Object[]) is also ignored by the JVM at startup; String[] is more specific and is the designated signature.
• D - All three methods are syntactically valid Java; the code compiles without error.
• E - No exception occurs; args[0] is "1" (a valid non-null String), so no ArrayIndexOutOfBoundsException is thrown.

Memory tip: Think of main(String[] args) as a hardcoded contract with the JVM - it won't "pick the best overload," it only looks for that exact signature. Any other main variant is just a regular method nobody automatically calls.

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