29 questions
I think it's a question about the design pattern ^^In situations where multiple classes implement a single interface, If you need to create a new implementation in a particular class (add a new method...
Why do you inherit an object by writing (object) after its name when declaring a class?Is there a difference that some codes use that and others don't?class MyClass(object): # Class code
If you have classes B and C, both of these inherited A, and when you created an object of B or C, how do you know what class this instantiated?
Hi, everyone.I'm writing to learn more about multiple inheritance.Is it necessary to use multiple inheritance, or is it okay to use it in combination with generics if necessary?It's thisCan anyone exp...
package Calc;import java.util.Scanner;class Calculator{ int a,b; void setOprands(int a,int b) { this.a = a; this.b = b; } int sum() { return this.a+this.b; } void plus() { } void minus() { } void r...
Is there a way to call a member function of a parent class in a child class?How can I implement call_print_in_Base below?class Base{public: void print() { cout << i'm base! << endl; }};cla...
It's a simple question.class CObj{ virtual int Add();};class CUnit :public CObjs{ virtual int Add(); virtual void Check();};If there is a simple inheritance structure as follows:Can I normally access ...
It's confusing how Java Generics deals with inheritance and polymorphism.Let's say there's a hierarchy like this.Animal (Parent)Dog - Cat (child) Assuming that there is a DoSomething(List<Animal>...
class A: def __init__(self): print(A)class B(A): def __init__(self): super().__init__()b = B()class A: def __init__(self): print(A)class B(A): def __init__(self): super(B, self).__init__()b = B()T...
You are about to create an exception handling class. public class MyException extends Exception {}public class Foo { public bar() throws MyException { throw new MyException(try again please); }}I trie...
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