👉 In computer science, "immutability" refers to a property that an object or data structure cannot be changed once it is created. In other words, when you create an object or data structure and then change its value, it will not affect the original object or data structure. For example, consider two objects A and B in a programming language: ``` class A { int x; } class B extends A { int y; } ``` In this case, when we create
