Answer: For sorting employees we need to use either Comparable or comparator interface. Since, as per question, the Employee class is not allowed to implement any Interface, only option is, to create a new comparator class that implements Comparator interface. And in “compare()” method Read more →
Answer: Yes, we can delete “this” pointer inside a member function only if the function call is made by the class object that has been created dynamically i.e. using “new” keyword. As, delete can only be applied on the object that has been created Read more →
Answer of generics in C# interview questions should includes generics with example program in c# and its advantages. Answer: Generics in C# programming allow us to design classes and methods decoupled from the data types.Here generics means, the same class or same method should Read more →
Answer: Yes, we can overload a generic methods in C# as we overload a normal method in a class. Example: using System; using System.Collections.Generic; using System.Linq; using System.Text; class GenericMethodOverloading { //Overloaded generic method with one parameter public void CustomPrint(T value) { Console.WriteLine(“In overloaded Read more →
Answer: As we know that as a general rule, we should write generic method in C# if the method operation is same for all data type. Or, we can say that if we have single implementation of method for all the data type. Read more →
Difference between Arraylist and Vector in java in Java Collections. We will be listing four important difference between java arraylist and vector data structures. Note that two differences that thread safety and performance difference should be given extra focus. Java ArrayList Vs Vector ArrayList Read more →
Both java queue add () and offer () methods are available in the Queue interface and are used to add elements to the queue. Preference will be given to java queue Offer() method. add() internally just call offer() method and does nothing extra. And Read more →
Answer: ADT (Abstract Data type) represents a set of particular behaviors. for example, LIST represents a sequence of values, a QUEUE represents a FIFO(First in First Out) logic on additions/deletions operations etc. ADTs are abstracted from the implementation detail of operations. For example, Add() Read more →
Answer: Time complexity for the methods offer & poll is O(log(n)) and for the peek() it is Constant time O(1) of java priority queue. NOTES: In Java programming, Java Priority Queue is implemented using Heap Data Structures and Heap has O(log(n)) time complexity Read more →
Answer: C++ Static function is the function that is independent of an object of the class. And called by class name and scope resolution :: operator without creating any object. However, there is no harm calling static functions using object, but that is redundant Read more →