Can a main () method be declared final?

Yes, we can declare the main () method as final in Java. The compiler does not throw any error. If we declare any method as final by placing the final keyword then that method becomes the final method. The main use of the final method in Java is they are not overridden.

Can we declare method in main method?

No, you can't declare a method inside another method. If you look closely at the code you provided it is just a case of bad formatting, the main method ends before the max method is declared.

How is main () method declared in Java?

Therefore, java main() method is the starting place of your program. The syntax for declaration of the java main method is as follows: Syntax: public static void main(String[] args) { // Method body goes here. } In the above declaration, two modifiers such as public, and static has been used with the main method.

Can we declare final variable in main method in Java?

A variable can be declared final. A final variable may only be assigned to once. It is a compile-time error if a final variable is assigned to unless it is definitely unassigned immediately prior to the assignment.

Is the main () method declared static?

Java main() method is always static, so that compiler can call it without the creation of an object or before the creation of an object of the class. In any Java program, the main() method is the starting point from where compiler starts program execution. So, the compiler needs to call the main() method.

Can we declare main method as final in Java ?

Why main () is declared public and static in Java?

The main method is public in Java because it has to be invoked by the JVM. So, if main() is not public in Java, the JVM won't call it. That's all about why the main method is declared public and static in Java.

Can we execute a program without main () method?

Yes, we can execute a java program without a main method by using a static block. Static block in Java is a group of statements that gets executed only once when the class is loaded into the memory by Java ClassLoader, It is also known as a static initialization block.

How do you declare a final method in Java?

We can declare Java methods as Final Method by adding the Final keyword before the method name. The Method with Final Keyword cannot be overridden in the subclasses. The purpose of the Final Method is to declare methods of how's definition can not be changed by a child or subclass that extends it.

Can a final variable be declared inside a method?

The method variable is scoped within a method's call life-cycle. The final modifier ensures that upon initialization, it cannot be re-initialized within the scope of the method of that call. So yes, per method call, that variable is made final.

Can we declare main method as private?

Yes, we can declare the main method as private in Java. It compiles successfully without any errors but at the runtime, it says that the main method is not public.

Can we overload main () method?

Yes, we can overload the main method in Java, but When we execute the class JVM starts execution with public static void main(String[] args) method.

Why main method is void in Java?

As the main() method doesn't return anything, its return type is void. As soon as the main() method terminates, the java program terminates too. Hence, it doesn't make any sense to return from the main() method as JVM can't do anything with the return value of it.

Why is the main () method special in a Java program Mcq?

Explanation: main() method can be defined only once in a program. Program execution begins from the main() method by java runtime system.

Can we declare main () method as non static?

You can write the main method in your program without the static modifier, the program gets compiled without compilation errors. But, at the time of execution JVM does not consider this new method (without static) as the entry point of the program.

Can we declare a method after main method in Java?

No, you can't (directly^*) defined methods inside other methods in Java (and the main method is no special case here).

Can we declare constructor as final?

No, a constructor can't be made final. A final method cannot be overridden by any subclasses. As mentioned previously, the final modifier prevents a method from being modified in a subclass. The main intention of making a method final would be that the content of the method should not be changed by any outsider.

Can a class be declared as final?

A class can be made final by using the final keyword. The final class cannot be inherited and so the final keyword is commonly used with a class to prevent inheritance.

Can an abstract class be final?

If you declare a class abstract, to use it, you must extend it and if you declare a class final you cannot extend it, since both contradict with each other you cannot declare a class both abstract and final if you do so a compile time error will be generated.

Can we declare final variable without initialization?

Declaring final variable without initialization

If you declare a final variable later on you cannot modify or, assign values to it. Moreover, like instance variables, final variables will not be initialized with default values. Therefore, it is mandatory to initialize final variables once you declare them.

Can final methods be called?

When a method is declared with final keyword, it is called a final method. A final method cannot be overridden. The Object class does this—a number of its methods are final. We must declare methods with the final keyword for which we are required to follow the same implementation throughout all the derived classes.

What happens when a method is declared final?

You use the final keyword in a method declaration to indicate that the method cannot be overridden by subclasses. The Object class does this—a number of its methods are final .

What is a final function in Java?

In Java, the final keyword is used to denote constants. It can be used with variables, methods, and classes. Once any entity (variable, method or class) is declared final , it can be assigned only once. That is, the final variable cannot be reinitialized with another value.

Should a main () method be compulsorily declared in all Java classes?

To compile a program, you doesn't really need a main method in your program. But, while execution JVM searches for the main method. In the Java the main method is the entry point Whenever you execute a program in Java JVM searches for the main method and starts executing from it.

What happens if we write main () inside main () method?

Well,you can call a main() within the main() function ,but you should have a condition that does not call the main() function to terminate the program. Otherwise,the program will never return and run infinitely. It will cause a stack overflow when the stack space is used up.

Can we have 2 main methods in Java?

From the above program, we can say that Java can have multiple main methods but with the concept of overloading. There should be only one main method with parameter as string[ ] arg.