What is difference between public static void and public void?

It means three things. First public means that any other object can access it. static means that the class in which it resides doesn’t have to be instantiated first before the function can be called. void means that the function does not return a value.

What is the difference between public and public static?

The simple and visible difference between public static function and public function is : Static function you can access without creating object. More about static you click here. The public keyword determines from where you can access the function, where: public allows access from everywhere.

What is public static void main?

The keyword public static void main is the means by which you create a main method within the Java application. It’s the core method of the program and calls all others. It can’t return values and accepts parameters for complex command-line processing.

What if you 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.

What is the difference between public void and private void?

public means that the method is visible and can be called from other objects of other types. Other alternatives are private, protected, package and package-private. void means that the method has no return value. If the method returned an int you would write int instead of void.

What is the difference between public static and private static in Java?

5 Answers. A public variable is accessible from anywhere (well, anywhere where the class is accessible). A private variable is only accessible inside the class. A static variable belongs to the class rather than to an instance of a class.

What is the difference between public/private protected and static in Java?

First and important difference is the accessibility i.e. anything public is accessible to anywhere , anything private is only accessible in the class they are declared , anything protected is accessible outside the package but only to child classes and default is accessible only inside the package.

Why Main in Java is public static void?

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. The main() method in Java must be declared public, static and void. If any of these are missing, the Java program will compile but a runtime error will be thrown.

What does public static void main String [] args mean?

} } Error: Main method is not static in class test, please define the main method as: public static void main(String[] args) Void: It is a keyword and used to specify that a method doesn’t return anything. As main() method doesn’t return anything, its return type is void.

What if a class is private?

Private classes are allowed, but only as inner or nested classes. If you have a private inner or nested class, then access is restricted to the scope of that outer class. If you have a private class on its own as a top-level class, then you can’t get access to it from anywhere.

What does public static void mean?

public static void = a static method which allows public access and returns nothing. This means it is available for anyone to see/use because it is public, it is associated with the class not an instance because it is static, and void always simply means there is no return value for the method.

What does public static mean?

The first word in the statement, public, means that any object can use the main method. The first word could also be static, but public static is the standard way. Still, public means that it is truly the main method of the program and the means by which all other code will be used in the program.

What is private static void?

A static void function is one that does not return a value, and which is private to the translation unit in which it is defined.

What does ‘public static void’ mean in Java?

Void means it returns nothing. Public means the method is accessible by any class in any package. The public static void main(String[] args) is a special method of a class, that is run when you invoke the java runtime passing the class file as the parameter.