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The main function is public because it means it needs to be called by any object. I had to check this myself but if you try to make the main function in Java private it will give you a run time error.
It is static because it is indicating it is a class method and it does not need to be instantiated. Without the static keyword you would need to do something like this
Main main = new Main();
What else can I help you with?
In java public static voidmain function denotes what?
Java's main function denotes the entry point into the execution of your program.
Can you overwrite main function in java?
You can not overwrite a static method in Java,and 'main' is a static method.so,you can't overwrite the 'main'.
How static member function main in java can be accessed by another function?
The main method can be called just like any other method. Just keep in mind that doing so can create infinite loops. Example: class MyClass { static boolean hasEnteredMain = false; public static void main(String[] args) { System.out.println("main()"); if(hasEnteredMain) { return; } hasEnteredMain = true; f(); } static void f() { System.out.println("f()"); main(null); } }
What are the valid signatures of the main method of a class?
The main method can be declared as either of the below: public static void main(String[] args) or public static void main(String args[])
What if you write static public void instead of public static void?
It would actually make no difference. The presence of the keywords during the declaration of the main method is important and not the order. so a static public void main(String[] args) would just compile and run perfectly fine just like public static void main(String[] args)
What is psvm in java?
public static void main
Why main function written as public static in java?
They are public because they must be accessible to the JVM to begin execution of the program. Main is the first method that would get executed in any class.They are static because they must be available for execution without an object instance. you may know that you need an object instance to invoke any method. So you cannot begin execution of a class without its object if the main method was not static.OrMain is starting point of the program execution Main method is called by JVM there is no need for JVM tocreate an object of the class just to access Main function
What is the name of the function which must be defined in a Java program?
The main function. Every program must have a main function and it must be declared static.
Does the order of public and static declaration matter in main method?
No
What if static public instead of public static in main?
Try it! If both can be compiled, the result will be the same; if any of them won't compile, settle for the other.
Can you have two mains in java?
Yes... We can have more than one main in JAVA... Just make the only one main method as public and other as default access specifier.... public class Test { public static void main(String args[]) { } } class Test1 { public static void main(String args[]) { } } class Test2 { public static void main(String args[]) { } } Just copy the above code and try.... Have fun in learning... :-) :) :-)
Is there any change by interchanging the position of main in Public static void main in java?
No. You can write it in as many ways as you want. The words public, static and void can be interchanged during the method declaration and still the main() method will continue to work in the same way. i.e., public static void main(String[] args) is the same as static public void main(String[] args) However, if you miss either of these 3 keywords from the method signature, the compiler will still let you compile the method, but it just won't be the main method that can be used to start the program execution.
