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I have a static method [Method1] in my class, which calls another method [Method2] in the same class and is not a static method. But this is a no-no. I get this error:
An object reference is required for the non-static field, method, or property "ClassName.MethodName()"
Can someone please briefly describe why? including other things that might be related to this.
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You cannot call non-static methods or access non-static fields from main or any other static method, because non-static members belong to a class instance, not to the entire class.
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. 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. Save this answer.
Yes, a static method can access a non-static variable. This is done by creating an object to the class and accessing the variable through the object.
To call a non-static method from main in Java, you first need to create an instance of the class, post which we can call using objectName. methodName().
A non-static method requires an instance of the class. Unless you have passed in an instance, or created an instance in your method, you cannot call a non-static method, as you have no idea what instance of the class that method should operate on.
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Within a static method, you do not have an instance of the class. So it will be impossible to call an instance method on an instance when no instance exists.
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