Take FREE!! Online Mettl Mock Test to Crack TechM and Other Companies Written Exams.
Get Off-Campus Placement Jobs Info !!!
TCS NQT Technical and Managerial Round Interview Questions
Technical Discussion :: Java

4 / 66

What is method overloading and overriding?

Answer:

Method Overloading:
A method with changed formal parameters will lead to implementing method overloading.
int calculateSum(int i,int j)
float calculateSum(float i,int j)
double calculateSum(double i,int j)
float calculateSum(int i,float j)

Method Overriding:
The method with the same signature but with changed implementation lead to method overriding and that can occur in a parent child relation of classes. A method defined in parent class can be overridden in its child class with different implementation from its base class.
1. Pointers are supported in C++ while not in Java. The memory management is done automatically with help of part of JVM called Garbage Collector.
2. Multiple inheritance is not supported in Java but supported in C++.
3. There are no structures and unions in Java.
4. There is no scope resolution operator in Java (::).
5. There are no destructors in Java like C++.
6. There is no virtual keyword in Java because all non-static method use dynamic binding.

Asked In :: TCSiGateSyntel Inc.Syntel Inc.AccentureSopra SteriaSociete Generale

Post Your Answer Here:


Rate This: +4 -0      +
Report    

Post Your Reply Here:

Alert me
q4i-reply-your-answer

Report Error

Please Login First Click Here

Rate This: +0 -0     
Report    

Post Your Reply Here:

Alert me
q4i-reply-your-answer

Report Error

Please Login First Click Here

Most Popular Qs.