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Java Methods

Here are 10 essential multiple-choice questions on Java Methods, covering key concepts.

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Question 1

Which of the following is true about methods in Java?

A method must return a value.
Methods can only be static.
Methods can be parameterized.
Methods cannot have the same name in a class.

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Question 2

What is the default return type of a method in Java if none is specified?

void
int
Object
It is compilation error when return type is not present.

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Question 3

What will be the output of the following code?

Java

class Test {
    static void display() {
        System.out.println("Static Method");
    }
    public static void main(String[] args) {
        Test.display();
    }
}

Static Method
Compilation error
Null
Runtime error

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Question 4

Which statement about instance methods is correct?

They can only be accessed from static methods.
They require an object to be called.
They are automatically synchronized.
They must be declared final.

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Question 5

What happens if we declare a method both static and final?

Compilation error
The method cannot be overridden
The method can be overridden
Runtime error

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Question 6

Identify the correct way to call a non-static method inside main().

methodName();
this.methodName();
new ClassName().methodName();
ClassName.methodName();

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Question 7

What will happen when calling a static method using an object?

Java

class Demo {
    static void show() {
        System.out.println("Static Method");
    }
    public static void main(String[] args) {
        Demo obj = new Demo();
        obj.show();
    }
}

Compilation error
Static Method
NullPointerException
Runtime error

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Question 8

Which of the following will cause a compile-time error in method overriding?

Overriding a method and narrowing its access modifier
Overriding a method with the same return type
Overriding a method using @Override annotation
Overriding a method and throwing fewer checked exceptions

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Question 9

What happens if a static method tries to access an instance variable?

It accesses the instance variable normally
It throws an exception
It results in a compilation error
It works if the variable is final

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Question 10

What is method overloading?

Two methods with the same name and parameters
Two methods with the same name but different parameters
Two methods with the same name but different return types
Defining methods inside a loop

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