The keyword used for inheritance isextendsas follows. class derived-class extends base-class { //methods and fields } classSuperClassA{publicvoidfoo(){System.out.println("SuperClassA");}}classSubClassBextendsSuperClassA{publicvoidbar(){System.out.println("SubClassB");}}publicclassTest{publicsta...
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Explain. (b) Give an example. QUESTION 1. Which of these is not included in a class diagram of an object class? The parent class The class name The methods The attributes QUESTION 2. To create a subclass, which Java keyword do you What is the Law of Demeter? Explain overloading a ...
Functions are special in that they have an optional name property and a code property (which is the body of the function that actually does stuff). The function's code is executed by the invocation operator (). // JavaScript functions are declared with the `function` keyword. // This is...
to a subclass or superclass of its declared type. If you view an inheritence hierarchy as a tree with Object at the top and all subclasses of Object as its children and so on, then upcasting is when you have a reference to a child and cast it to a parent class or interface type. ...
In this example, my_decorator is a function that takes another function func as an argument and returns a new function wrapper that wraps func with some additional behavior. The resulting wrapper function can be called just like func, but with the added behavior provided by my_decorator. Using...
To create a subclass, which Java keyword do you Pick a pair of concrete classes in the JDK in a parent-child relationship and discuss a few polymorphic and/or overloaded methods. (a) When do we use Methods in java? (b) Provide an example. With examples, explain when you would use ...