What will happen if we remove static from that main method?

What if we don’t write “static” before the main method: If we do not write “static” before the main method then, our program will be compiled without any compilation error(s).

Why are the modifiers public and static used for the main method?

public: The public modifier makes it accessible from anywhere in the application. 2. static: The static modifier makes it a class method so that it can be called using the class name without creating an object of the class. 3.

What is the signature of the main method?

public static void main(String a[]) is the main entry point signature for a typical Java program. The reason is that you need to declare the main() method with a specified signature (and a method signature contains its name, number of its parameters and the types of the parameters).

Why static is used in main method?

The main() method is static so that JVM can invoke it without instantiating the class. This also saves the unnecessary wastage of memory which would have been used by the object declared only for calling the main() method by the JVM.

What if I write static public void instead of public static void?

If you write static public void instead of public static void then it is perfectly OK. Your Java program will compile and run successfully. It doesn’t really make any difference as long as method name comes last and return type of method comes second last.

Can static methods be overwritten?

Can we override a static method? No, we cannot override static methods because method overriding is based on dynamic binding at runtime and the static methods are bonded using static binding at compile time.

Can static method be final?

Static methods can be overriden, but they cannot be overriden to be non-static,Whereas final methods cannot be overridden. A final method is just a method that cannot be overridden – while static methods are implicitly final, you might also want to create an final instance method.

Why main method signature is public static void?

When java runtime starts, there is no object of the class present. That’s why the main method has to be static so that JVM can load the class into memory and call the main method. If the main method won’t be static, JVM would not be able to call it because there is no object of the class is present.

Can we write main method as public void static instead of public static void?

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.

What happens if I don’t add the static modifier in my method?

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.

Can static method call non static method in Java?

Static method can not call non-static method. As you know in Java, There should be only one class which should contain the main method and it should be public. Without having declared main method static , our program will successfully compile but won’t execute and report error at run time.

What is the use of static keyword in Java?

The static keyword is used in java mainly for memory management. It is used with variables, methods, blocks and nested class. It is a keyword that are used for share the same variable or method of a given class. This is used for a constant variable or a method that is the same for every instance of a class.

What is the difference between public static void main and main?

This type questions are asked in interview to confuse the candidate. If you write static public void main instead of public static void main, then it will make no difference. Program compiles properly and runs. But if you change the sequence of main, then it will you give a compiler error.