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Java Programming - Declarations and Access Control - Discussion

Discussion Forum : Declarations and Access Control - General Questions (Q.No. 9)
Declarations and Access Control
9.
Which three are valid method signatures in an interface?
  1. private int getArea();
  2. public float getVol(float x);
  3. public void main(String [] args);
  4. public static void main(String [] args);
  5. boolean setFlag(Boolean [] test);
1 and 2
2, 3 and 5
3, 4, and 5
2 and 4
Answer: Option
Explanation:

(2), (3), and (5). These are all valid interface method signatures.

(1), is incorrect because an interface method must be public; if it is not explicitly declared public it will be made public implicitly. (4) is incorrect because interface methods cannot be static.

Discussion:
14 comments Page 2 of 2.
Mohammed Refeekh said:   1 decade ago
Can have a interface method protected or default?
Adithya said:   1 decade ago
Hi,

Let me know if we can declare main method in an interface ?
Ashvin said:   1 decade ago
Can any one tell that do we generally put psvm in an interface?
Deepak said:   1 decade ago
What a difficult language is this java?
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