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Can a main method in java be overloaded?
Yes. The main method is just like any other java method and can be overloaded. But - Only the method with public static void main(String[] args) signature will get invoked when the class is run.
Can static member function be overloaded?
Yes. Any function can be overloaded. However you cannot override a static member function. Only instance members can be overridden.
Can you refer static method from non static method in java?
Yes, it is possible to call a static method from a non-static method. However, it is not possible to call a non-static method from a static method without first having an instance to operate on.
What are duplicate java method names?
overloaded methods.
Tell about static method?
in java a method is said to be static if 'static 'keyword is used before the method name . foe ex.- static void show(){ ........ } this method has the following property-- 1. it can invoke only a static method. 2. it can't be reffered using keyword 'this','super'. 3.static method can access only a STATIC MEMBER VARIABLE or STATIC CLASS VARIABLE . 4. there should not be static & non static version of a nethod in a class . 5.static method can be used before the creation of d object of dt class.
Why you use main method when you can use static method?
The main method is called by the jvm when your program is executed. The main method is a static method: public static void main(String[] args) {} A static method is method that can be run without instantiate the class (creating an object from it) The main method is a static method. No other static method could replace it's functionality. PS By static method do you mean static initialiser? I often use static initialisers instead of a main method, but in these cases you must still have a main method, albeit an empty one ie. public static void main(String[] args) {} Notice that the method has an empty body A main method must be used if you intend to accept parameters at run time from the jvm.
Static method can be call object?
yes we can call a static method with object
Can you refer non static method from static content in java?
Shortly, you can not.Different approaches are however available.1. Put your non static method in different class. Then call it from your static content by first instantiating the class.2. Make a duplicate static method for your non static method and use from your static content.
What is need of static method?
If you need to access a method without creating an object of corresponding class, it need to be a static method.
Do static methods operate on objects why?
No. Why? By definition. A static method is, precisely, a method that is not meant to operate on an object. It can only work with static fields, and other static methods, of its class.
Can static variable be used inside a static method?
Yes.
Can main method be overloaded illustrate with example program?
Yes, you can very well overload the main method but, the main method that would get invoked by the JVM when you try to run this class would be the main method that has the below signature: public static void main(String[] args) { ... } All other main methods would be accepted by the Compiler but only the above method would get called when you run the class
