interface Test{
int p = 10; //line 1
public int q = 20; //line 2
public static int r = 30; //line 3
public static final int s = 40; //line 4
}
Which of the above line will give compilation error?
interface Test{
int p = 10; //line 1
public int q = 20; //line 2
public static int r = 30; //line 3
public static final int s = 40; //line 4
}
A. 1
B. 2
C. 3
D. 4
E. None of these
Answer: Option E
Related Questions on Interfaces and Abstract Classes
A. A contract specifying a set of methods that a class must implement
B. A class that cannot be instantiated
C. A class that contains only static methods
D. A subclass of the Object class
In Java, can a class implement multiple interfaces?
A. Interfaces cannot be implemented by classes
B. Only abstract classes can implement interfaces
C. No, a class can only implement one interface
D. Yes, a class can implement multiple interfaces
What is the purpose of an abstract class in Java?
A. To declare abstract methods
B. To provide a base class with common methods and fields
C. To make a class final
D. To declare abstract methods
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