COMPILER DESIGN

Detailed explanation-1: -Answer: Only public and abstract modifiers are allowed for methods in an interfaces.

Detailed explanation-2: -An abstract method can only set a visibility modifier, one of public or protected. That is, an abstract method cannot add static or final modifier to the declaration.

Detailed explanation-3: -Only public and abstract modifiers are allowed for methods in interfaces.

Detailed explanation-4: -Only a “public” access modifier is allowed.

Detailed explanation-5: -Abstract classes methods can have access modifiers as public, private, protected, static but interface methods are implicitly public and abstract, we can’t use any other access modifiers with interface methods.