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- Question
Which is a valid declaration within an interface?
Options- A. public static short stop = 23;
- B. protected short stop = 23;
- C. transient short stop = 23;
- D. final void madness(short stop);
- Correct Answer
- public static short stop = 23;
Explanation(A) is valid interface declarations.(B) and (C) are incorrect because interface variables cannot be either protected or transient. (D) is incorrect because interface methods cannot be final or static.
More questions
- 1. What will be the output of the program (in jdk1.6 or above)?
public class BoolTest { public static void main(String [] args) { Boolean b1 = new Boolean("false"); boolean b2; b2 = b1.booleanValue(); if (!b2) { b2 = true; System.out.print("x "); } if (b1 & b2) /* Line 13 */ { System.out.print("y "); } System.out.println("z"); } }
Options- A. z
- B. x z
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- 1. What will be the output of the program (in jdk1.6 or above)?