Newbe Dev Stack

Answer : Assuming no SecurityManager is preventing you from doing this, you can use setAccessible to get around private and resetting the modifier to get rid of final , and actually modify a private static final field. Here's an example: import java.lang.reflect.*; public class EverythingIsTrue { static void setFinalStatic(Field field, Object newValue) throws Exception { field.setAccessible(true); Field modifiersField = Field.class.getDeclaredField("modifiers"); modifiersField.setAccessible(true); modifiersField.setInt(field, field.getModifiers() & ~Modifier.FINAL); field.set(null, newValue); } public static void main(String args[]) throws Exception { setFinalStatic(Boolean.class.getField("FALSE"), true); System.out.format("Everything is %s", false); // "Everything is true" } } Assuming no SecurityException is thrown, the above code prints "Everything is true...

Answer : Variables declared inside the class definition, but not inside a method are class or static variables: >>> class MyClass: ... i = 3 ... >>> MyClass.i 3 As @millerdev points out, this creates a class-level i variable, but this is distinct from any instance-level i variable, so you could have >>> m = MyClass() >>> m.i = 4 >>> MyClass.i, m.i >>> (3, 4) This is different from C++ and Java, but not so different from C#, where a static member can't be accessed using a reference to an instance. See what the Python tutorial has to say on the subject of classes and class objects. @Steve Johnson has already answered regarding static methods, also documented under "Built-in Functions" in the Python Library Reference. class C: @staticmethod def f(arg1, arg2, ...): ... @beidy recommends classmethods over staticmethod, as the method then receives the class type as the first argument, but I...

Answer : 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. You could create an instance of the class you want to call the method on, e.g. new Foo().nonStaticMethod(); Firstly create a class Instance and call the non-static method using that instance. e.g, class demo { public static void main(String args[]) { demo d = new demo(); d.add(10,20); // to call the non-static method } public void add(int x ,int y) { int a = x; int b = y; int c = a + b; System.out.println("addition" + c); } }