Yes, we can declare the main method asprivate in Java. It compiles successfully without any errorsbut at the runtime, it says that the main method is notpublic..
Also asked, can we declare main method as private in Java?
Answer: Yes, we can declare main method asprivate. It compiles without any errors, but in runtime, itsays main method is not public.
why do we use private in Java? In Summary private keyword in java allowsmost restrictive access to variables and methods and offerstrongest form of Encapsulation. private members are notaccessible outside the class and private method can not beoverridden.
In respect to this, why main method is not private in Java?
In Java ,whenever we declare members (instancevariables or methods) of a class as private,thosemembers could be accessed from within that class only.They willnot be visible to any class outside this class.
Can we declare inner class as private?
Unlike a class, an inner class can beprivate and once you declare an inner classprivate, it cannot be accessed from an object outside theclass. Following is the program to create an innerclass and access it.
Related Question Answers
Why main method is public?
Java program's main method has to be declaredstatic because keyword static allows main to be calledwithout creating an object of the class in which the mainmethod is defined. In this case, main must be declaredas public , since it must be called by code outside of itsclass when the program is started.What if static is removed from main method?
That's why the main method has to bestatic so that JVM can load the class into memory and callthe main method. If the main method won't bestatic, JVM would not be able to call it because there is noobject of the class is present. Let's see what happens whenwe remove static from java main method.Can a private method be declared as static?
private static method means you can notinvoke the method from outside the class as themethod is private to the class. think of privatestatic methods as the membeers that belong to the class and notof any instance of the class. Static member of the class arecalled even before the object of that class arecreated.Can a main method be declared final?
If you declare a method with same name andsignature its called method hiding. Of course, youcan make the main method final in Java. JVM has noissue with that. Unlike any final method, you can notoverride main in Java.Can we override a private or static method in Java?
Answer is, No, you can not override staticmethod in Java, though you can declare methodwith same signature in sub class. As per Java codingconvention, static methods should be accessed byclass name rather than object. In short Static method can beoverloaded, but can not be overridden inJava.What if main method is declared as private?
But if you declare main method asprivate, you would not be able to execute the class as astandalone java program. Any java class that needs to be executedas a standalone file needs to have a main method that ispublic, static and returns a void.Why is main public in Java?
All Java applications, except applets, starttheir execution from main() . The keyword public isan access modifier which allows the member to be called fromoutside the class. static is used because it allows main()to be called without having to instantiate a particular instance ofthat class.Is main method compulsory in Java?
Without a main method you application will haveno entry point. Yes, it is required for any executable program. Ifyou try to execute a Java class, the JVM will look for amain method to invoke it. Not all classes need a main, only the one that serve as "entry point" forexecution.What is main function in Java?
A Java application is a public Java classwith a main() method. The main() methodis the entry point into the application. The signature of themethod is always: public static void main(String[]args) Command-line arguments are passed through the args parameter,which is an array of String s.Can we overload main method?
Yes, you can overload main method in Java. Yes,main method can be overloaded. Overloaded mainmethod has to be called from inside the "public static voidmain(String args[])" as this is the entry point when theclass is launched by the JVM. Also overloaded main methodcan have any qualifier as a normal methodhave.Why we Cannot override static method?
Static methods cannot be overriddenbecause they are not dispatched on the object instance at runtime.The compiler decides which method gets called. Staticmethods can be overloaded (meaning that you can have the samemethod name for several methods as long as they havedifferent parameter types).Can a class be protected in Java?
Variables, methods, and constructors, which are declaredprotected in a superclass can be accessed only by thesubclasses in other package or any class within the packageof the protected members' class. The protectedaccess modifier cannot be applied to class andinterfaces.What is static in Java?
In Java, a static member is a member of aclass that isn't associated with an instance of a class. Instead,the member belongs to the class itself. As a result, you can accessthe static member without first creating a class instance.The value of a static field is the same across all instancesof the class.Why main method is called first in Java?
The static block is first executed as soon as theclass is loaded before the main(); the method isinvoked and therefore before the main() is called.main is usually declared as static method and henceJava doesn't need an object to call the mainmethod.What is this keyword in Java?
Keyword THIS is a reference variable inJava that refers to the current object. It can be used torefer instance variable of current class. It can be used to invokeor initiate current class constructor. It can be passed as anargument in the method call.What is object in Java?
A Java object is a combination of data andprocedures working on the available data. An object has astate and behavior. The state of an object is stored infields (variables), while methods (functions) display theobject's behavior. Objects are created from templatesknown as classes.Can we overload static method in Java?
Static methods cannot be overridden because theyare not dispatched on the object instance at runtime. The compilerdecides which method gets called. Static methods canbe overloaded (meaning that you can have the samemethod name for several methods as long as they havedifferent parameter types).What is the effect of keeping a constructor private?
By providing a private constructor you preventclass instances from being created in any place other than thisvery class. There are several use cases for providing suchconstructor. A. Your class instances are created in a staticmethod. The static method is then declared as public .Can a class be private?
We can declare an inner class asprivate but we can not declare an outer classas private. As we know a field defined in a classusing private keyword can only be accessible withinthe same class and is not visible to the outsideworld. 
