How to declare variables inside java interface JavaChamp Flash Card

Question 42 / 297: Which of the following variables is incorrectly declared?

public abstract interface Bouncable {
	
	int a = 0; 
	public int b = 1; 
	public static int c = 2; 
	public static transient int d = 3; 
	public final int e = 3; 
	public static final int f = 3; 

}

A a

B b

C c

D d

E e

F f

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Explanation:

Data members declared in an interface are by default public static final. In another word they are constants.

"transient", "private" and "protected" modifiers are not accepted when marking data members in an interface.

For methods in an interface, only "public" and "abstract" are allowed

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