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Java Methods
Question 1
What is the default return type of a method in Java if none is specified?
- A
void
- B
int
- C
Object
- D
It is compilation error when return type is not present.
Question 2
Which statement about instance methods is correct?
- A
They can only be accessed from static methods.
- B
They require an object to be called.
- C
They are automatically synchronized.
- D
They must be declared final.
Question 3
What happens if we declare a method both static and final?
- A
Compilation error
- B
The method cannot be overridden
- C
The method can be overridden
- D
Runtime error
Question 4
What will happen when calling a static method using an object?
class Demo {
static void show() {
System.out.println("Static Method");
}
public static void main(String[] args) {
Demo obj = new Demo();
obj.show();
}
}
- A
Compilation error
- B
Static Method
- C
NullPointerException
- D
Runtime error
Question 5
Which of the following will cause a compile-time error in method overriding?
- A
Overriding a method and narrowing its access modifier
- B
Overriding a method with the same return type
- C
Overriding a method using @Override annotation
- D
Overriding a method and throwing fewer checked exceptions
Question 6
What is method overloading?
- A
Two methods with the same name and parameters
- B
Two methods with the same name but different parameters
- C
Two methods with the same name but different return types
- D
Defining methods inside a loop
Question 7
What is the correct syntax to call a method named display() from the same class?
- A
display();
- B
class.display();
- C
void display();
- D
call display();
Question 8
What is the use of varargs in Java?
- A
To return multiple values
- B
To accept a variable number of arguments
- C
To call a method multiple times
- D
To pass a list
Question 9
Which method is called when a Java program starts execution?
- A
execute()
- B
main()
- C
run()
- D
start()
There are 9 questions to complete.