method-hiding

问题 Javadoc says: the version of the hidden method that gets invoked is the one in the superclass, and the version of the overridden method that gets invoked is the one in the subclass. doesn\'t ring a bell to me. Any clear example showing the meaning of this will be highly appreciated. 回答1: public class Animal { public static void foo() { System.out.println("Animal"); } } public class Cat extends Animal { public static void foo() { // hides Animal.foo() System.out.println("Cat"); } } Here, Cat

问题 This question already has answers here : Difference between shadowing and overriding in C#? (5 answers) Closed 9 months ago . I am a bit confused about overriding vs. hiding a method in C#. Practical uses of each would also be appreciated, as well as an explanation for when one would use each. I am confused about overriding - why do we override? What I have learnt so far is that by overring we can provide desired implementation to a method of a derived class, without changing the signature.

问题 What are differences between declaring a method in a base type \" virtual \" and then overriding it in a child type using the \" override \" keyword as opposed to simply using the \" new \" keyword when declaring the matching method in the child type? 回答1: The "new" keyword doesn't override, it signifies a new method that has nothing to do with the base class method. public class Foo { public bool DoSomething() { return false; } } public class Bar : Foo { public new bool DoSomething() {