Which of the following could be used to declare abstract method method1 in abstract class Class1 (method1 returns an int and takes no arguments)?
A) public int method1();
B) public int abstract method1();
C) public abstract int method1();
D) public int nonfinal method1();

Question

Quizplus · Accepted Answer

To declare an abstract method in an abstract class, we need to use the "abstract" keyword before the return type and method name. The correct syntax for declaring an abstract method is: "public abstract int method1();". Therefore, option C is the correct choice. Options A, B, and D are all incorrect as they either lack the "abstract" keyword or include additional keywords that are not allowed in abstract method declarations.

Which of the Following Could Be Used to Declare Abstract