In our scenario calling a non static method from static method in java. So when you (naturally) try to make the method static, you get the "cannot-hide-the-instance-method" error. Stack Overflow for Teams is a private, secure spot for you and "An object reference is required for the non-static field, method or property".

By definition, a non-static method is one that is called ON an instance of some class, whereas a static method belongs to the class itself.You could create an instance of the class you want to call the method on, e.g. The Overflow Blog but (However, Java doesn't allow the implementation of an interface-defined method to be static.
The main() method cannot have access to the non-static variables and methods, you will get “non-static method cannot be referenced from a static context” when you try to do so.

Private self-hosted questions and answers for your enterpriseProgramming and related technical career opportunities Featured on Meta !The main method does not have access to non-static members either. Stack Overflow for Teams is a private, secure spot for you and This is because by default when you call/access a method or variable it is really accessing the this.method() or this.variable. (7 answers) Show activity on this post. Check out for the static before the main method, this declares the method as a class method, which means it needs no instance to be called. So non-static method will not get object for its instantiation inside static method, thus making it incapable for being instantiated. (The Java Language Specification mentions this in If you can't change the interface (or don't want to), there are several things you can do:You need an instance of the class containing the non static method. So non-static method will not get object for its instantiation inside static method, thus making it incapable for being instantiated.

Calling static method from non static method in java. Output: sum is = 9. Just another way to do it.Constructor is a special method which in theory is the "only" non-static method called by any static method. Static method never allows a non-static method call directly. Firstly create a class Instance and call the non-static method using that instance. To call the method we need to write the name of the method followed by the class object name. Reason: Static method belongs to its class only, and to nay object or any instance. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under Featured on Meta The Overflow Blog
Is like when you try to invoke the non-static method What you need is to have an instance and then invoke the non-static method:The only way to call a non-static method from a static method is to have an instance of the class containing the non-static method.You can't get around this restriction directly, no.

@EJP For security purposes, and this is what I do with my project, in the case of dependency injection, it is useful to only have initialization code be instantiated for initialization, and not at the arbitrary discretion of code using my API. This is the idea behind utility classes.To call any non-static method or variable in a static context, you need to You have to instantiate the object you wish to access.You must create an instance of the class in order to reference instance variables & methods.Thanks for contributing an answer to Stack Overflow! This is because by default when you call/access a method or variable it is really accessing the this.method() or this.variable. As a rule in object-oriented paradigm, a static method can have access only to static variables and static methods. But there may be some reasonable things you can do in your particular case.For example, you could just "new up" an instance of your class in the static method, then call the non-static method.But you might get even better suggestions if you post your class(es) -- or a slimmed-down version of them.The easiest way to use a non-static method/field within a a static method or vice versa is...(To work this there must be at least one instance of this class)This type of situation is very common in android app development eg:- An Activity has at-least one instance.Note:- This cannot be used as a builder method like this one.....I use an interface and create an anonymous instance of it like so:Not as elegant as creating an instance of that class and calling its own method, but accomplishes the same thing, essentially. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under It is not possible to call non-static method within static method. e.g, the above code not executed because static method must have that class reference.This will be definitely get executed.