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.
Can we use static public void main?
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 we use private static in Java?
The private keyword
will allow the use for the variable access within the class
and static means we can access the variable in a static method. You may need this cause a non-static reference variable cannot be accessible in a static method.
What is private static void Main?
1)public: It is an access specifier which allows the JVM(Java Virtual Machine) to access the main method from anywhere. 2)static: static keyword allows the JVM to access the main method without any instance(object). 3)void:
It specifies that the main method doesn’t return anything.
What is private static void in Java?
static means that the method is associated with the class, not a specific instance (object) of that class. This means that you can call a static method without creating an object of the class. void
means that the method has no return value
. If the method returned an int you would write int instead of void .
Can we override static method?
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 we remove static from 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. Let’s see what happens when we remove static from java main method.
Can we declare constructor as private?
Yes, we can declare a constructor as private
. If we declare a constructor as private we are not able to create an object of a class.
Can we make static method private?
Static variables and methods belong to a class and are called with the Class Name rather than using object variables, like ClassName. … For example, the main method is static because there should only be 1 main method.
Static methods can be public or private
.
Can we declare private method as static?
Yes
, we can have private methods or private static methods in an interface in Java 9. … Private methods can be useful or accessible only within that interface only.
What if the main method declares 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.
What is the difference between public static void and private static 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. … This means that you can call a static method without creating an object of the class.
void means that the method has no return value
.
Why main method is static?
Why the main () method in Java is always 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.
Is void a method?
The void keyword allows
us to create methods which do not return a value
. … This method is a void method, which does not return any value. Call to a void method must be a statement i.e. methodRankPoints(255.7);. It is a Java statement which ends with a semicolon as shown in the following example.
What is difference between public static and void?
public − This is the access specifier that states that the method can be accesses publically. static − Here, the object is not required to access static members. void − This
states that the method doesn’t return any value
.
Can we use this () and super () in a constructor?
both this() and
super() can not be used together in constructor
. this() is used to call default constructor of same class.it should be first statement inside constructor. super() is used to call default constructor of base class.it should be first statement inside constructor.
