Can we write main method without void?

Yes. Things like libraries don't have a main method. The main method is the entry point for the program, so you'll have to have a main method somewhere or the code won't execute, but not necessarily in any given Java file.

Why main method is always void?

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.

Can we write main method without string [] args?

What happens if the main() method is written without String args[]? The program will compile, but not run, because JVM will not recognize the main() method. Remember JVM always looks for the main() method with a string type array as a parameter.

Can main method be empty?

No, the main method is the only method the compiler is searching for when looking where to start. Hence if you're main method is empty, nothing gets executed.

Can we declare main method without public?

Can we declare main() method as private or protected or with no access modifier? No, we declare main() method as private or protected or with no access modifier because if we declare so, main() will not be accessible to JVM. Class will compile successfully but will get run time error as no main method found.

Java Main Method Tutorial - Everything You Need to Know

Can main method be 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 main function be made private?

Can main() function be made private? Explanation: The reason given in option “No, because main function is user defined” is wrong. The proper reason that the main function should not be private is that it should be accessible in whole program.

Can main method in Java be empty?

you can run a Java program with empty Main method, in which case only code executed will be from static initializer block. Following is a simple Java program with some code written on static initializer block, including a print statement, a variable initialization and starting a thread.

Can we write main method without static in Java?

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 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.

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.

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.

What happens if I remove static from main method?

1 Answer. If you don't add the 'static' modifier in your main method definition, the compilation of the program will go through without any issues but when you'll try to execute it, a "NoSuchMethodError" error will be thrown.

Why main method is declared as static?

Main() is declared as static as it is directly call by the JVM without creating an object of the class in which the it is declared. When java runtime starts,there is no object of class present. Thats why main method has to be static,so JVM can load the class into memory and call the main method.

Can we override static method?

Overloading is the mechanism of binding the method call with the method body dynamically based on the parameters passed to the method call. Static methods are bonded at compile time using static binding. Therefore, we cannot override static methods in Java.

Can we write static public void main String args?

Yes, we can change the order of public static void main() to static public void main() in Java, the compiler doesn't throw any compile-time or runtime error. In Java, we can declare access modifiers in any order, the method name comes last, the return type comes second to last and then after it's our choice.

Can main method call non-static method?

Since you want to call a non-static method from main, you just need to create an object of that class consisting non-static method and then you will be able to call the method using objectname.

Can we call non-static method in static method?

Solution 1. A static method provides NO reference to an instance of its class (it is a class method) hence, no, you cannot call a non-static method inside a static one. Create an object of the class inside the static method and then call the non-static method using such an object.

Can we write method without class in Java?

No you cannot make a java program without class! Because without a class you cannot make objects!

Can we run spring boot without main method?

You don't need the main method, all you need is to do is to extend SpringBootServletInitializer as Kryger mentioned. @SpringBootApplication public class Application extends SpringBootServletInitializer { @Override protected SpringApplicationBuilder configure(SpringApplicationBuilder application) { return application.

Can we make constructor static?

No, we cannot define a static constructor in Java, If we are trying to define a constructor with the static keyword a compile-time error will occur. In general, static means class level. A constructor will be used to assign initial values for the instance variables.

Why do we pass String args in main method?

When you run Java program, by right click on Java class with main method, it creates a Run Argument for that class. By the way, you can write your String args[] as String[] args as well, because both are valid way to declare String array in Java.

Is it possible to write method inside method?

Java does not support “directly” nested methods. Many functional programming languages support method within method. But you can achieve nested method functionality in Java 7 or older version by define local classes, class within method so this does compile.

What happens if main method is declared as private?

But if you declare main method as private, you would not be able to execute the class as a standalone java program. Any java class that needs to be executed as a standalone file needs to have a main method that is public, static and returns a void.

Can we declare class as private in Java?

No, we cannot declare a top-level class as private or protected. It can be either public or default (no modifier).