Core java - Interview Questions and Answers for 'Capital one' - 3 question(s) found - Order By Newest Must know at all levels. Among Top 10 frequently asked questions in Java. Very frequently asked to fresh graduates or less experienced professionals. Ans. Its a facility for code reuse and independent extension wherein a derived class inherits the properties of parent class. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  inheritance  object oriented programming (oops)  oops concepts  oops concepts  java concepts  code reuse  code re-use   classes  derived classes Asked in 14 Companies basic   frequent Related Questions Why do we need Inner classes ? Cant we just work with outer classes wherever we implement Inner classes ? Differences between abstract class and interface ? What are different types of classes ? Will this code give error if i try to add two heterogeneous elements in the arraylist. ? and Why ? Which of the following can be marked static ?
a. Methods , Variables and Initialization Blocks.
b. Methods , Variables , Initialization Blocks and Outer Classes and nested Classes.
c. Methods , Variables , Initialization Blocks and Outer Classes.
d. Methods , Variables , Initialization Blocks and nested Classes What is the difference between the following two code lines ?
1. new OuterClass().new InnerClass();
2. new OuterClass.InnerClass(); What are the Wrapper classes available for primitive types ? What are wrapper classes ? Why Struts 1 Classes are not Thread Safe whereas Struts 2 classes are thread safe ? What is a stream and what are the types of Streams and classes of the Streams? Q2. Write a method / program that will determine if the parenthesis are balanced in a given string. Core Java
Ans. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/ Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  string  code  coding Asked in 14 Companies Related Questions What are the steps to be performed while coding Junit with Mocking framework ? What is a Sequence File? What different level of logging you use while coding ? Have you ever encoded the response before sending it back from the service? If Yes , Which encoding was used ? What are the different type of encoding you have used ? How does encoding affect using Reader / writer classes or Stream classes in Java ? What is the difference between html encoding and url encoding ? Does spaces get's encoded in html encoding ? Q3. Write a java program to find the maximum profit in day trading Core Java
This question was recently asked at 'Capital One'.This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve   Asked in 1 Companies Related Questions Difference between == and .equals() ? Why is String immutable in Java ? Explain the scenerios to choose between String , StringBuilder and StringBuffer ?
or
What is the difference between String , StringBuilder and StringBuffer ? What are the difference between composition and inheritance in Java? Explain OOPs
or
Explain OOPs Principles
or
Explain OOPs Concepts
or
Explain OOPs features
or
Tell me something about OOPs What is a Lambda Expression ? What's its use ? What are different ways to create String Object? Explain. Why Char array is preferred over String for storing password? Does garbage collection guarantee that a program will not run out of memory? What is the difference between final, finally and finalize() ?