What does main return in Java?

The public static void main() method is the entry point of the Java program. Whenever you execute a program in Java, the JVM searches for the main method and starts executing from it. … It searches for the main method which is public, static, with return type void, and a String array as an argument.

What does main method return in java?

Java main method doesn’t return anything, that’s why it’s return type is void . This has been done to keep things simple because once the main method is finished executing, java program terminates. So there is no point in returning anything, there is nothing that can be done for the returned object by JVM.

Does Main return anything in java?

As 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 main() method as JVM can’t do anything with the return value of it.

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Can main return String in java?

No. The to be a main() method, it must return nothing (ie be void ).

Can the main method return a value?

As the return type of main method is void, the method will not return any value/data.

What is main in Java?

The main() is the starting point for JVM to start execution of a Java program. Without the main() method, JVM will not execute the program. The syntax of the main() method is: public: It is an access specifier.

What is the return type of main?

main function return type is integer by default. But it cam be void also . When return type is integer ,you have to include “return 0” statement at the end . This line returns zero to the operating system at the end of the program.

Can main method be overloaded?

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.

Can main method return int?

I answered: No. The compiler won’t compile it as it is expecting the return type of main to be int , though we can overload it.

Can we override main method in Java?

No, we cannot override main method of java because a static method cannot be overridden. The static method in java is associated with class whereas the non-static method is associated with an object.

How do I go back to the main in Java?

(2) Add a “while (true) {…}” loop in your main method, and then add a try-catch within the while loop. Anytime you throw an exception from anywhere that is intended to be caught by this try-catch, surprise, your code will go back to execute the beginning of the main method (unless the exception was caught before that)!

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Can the return type of the main function be in?

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

What is difference between return 0 and return1?

return 0: A return 0 means that the program will execute successfully and did what it was intended to do. return 1: A return 1 means that there is some error while executing the program and it is not performing what it was intended to do.

Why main method is public 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 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.

Why static is used in Java?

The static keyword in Java is mainly used for memory management. The static keyword in Java is used to share the same variable or method of a given class. The users can apply static keywords with variables, methods, blocks, and nested classes. The static keyword belongs to the class than an instance of the class.

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