Amazon Interview Question Software Engineer / Developers
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operator overloading allows for natural arithmetic and other expressions when building custom classes. like ,let we want to use sort function and we have two parameters by which sort could be done. let it's a struct node{int des,int cost},we have adjacency list to make a graph and for which we want to sort, first by cost and if cost are equal then sort by diff in ascending order.So here we need to define '<' for sort function as bool operator < (cosnt struct node &a,const struct node &b){if(a.cost!=b.cost)return a.cost< b.cost;return a.des < b.des;} By doing this in the sort function operator '<' will perform mentioned work hence by doing this way we will get our purpose efficiently and effectively.You can find more to here topcoder.com/tc?module=Static&d1=features&d2=060204.
- lakha October 10, 2010Method overriding, in object oriented programming , is a language feature that allows a subclass or child class to provide a specific implementation of a method that is already provided by one of its superclasses or parent classes.For more details try this one en.wikipedia.org/wiki/Method_overriding