Search Interview Questions |  More than 3000 questions in repository. There are more than 900 unanswered questions. Click here and help us by providing the answer. Have a video suggestion. Click Correct / Improve and please let us know. |
|
|||
|
| ||||
| Interview Questions and Answers for 'Kony lab' - 4 question(s) found - Order By Newest | ||||
 Very frequently asked in different variations. Frequently asked in Deloitte ( 2 feedback ) , HCL Tech ( 3 feedback ), TCS and Coginizant (CTS) | ||||
| ||||
| Ans. If the Object value will not change, use String Class because a String object is immutable. If the Object value can change and will only be modified from a single thread, use StringBuilder because StringBuilder is unsynchronized(means faster). If the Object value may change, and can be modified by multiple threads, use a StringBuffer because StringBuffer is thread safe(synchronized). | ||||
 Sample Code for String Sample Code for StringBuffer Sample Code for StringBuilder | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
 Discuss Correct / Improve  java string class string stringbuilder stringbuffer String vs StringBuffer String vs StringBuilder String vs StringBuilder vs StringBuffer StringBuffer vs stringBuilder  Asked in 29 Companies  basic  frequent | ||||
 Try 3 Question(s) Test | ||||
| Very Frequently asked to fresh graduates and less experienced. Favorite question in Walk in drives. Frequently asked in Indian Services companies. | ||||
| ||||
| Ans. Overloading - Similar Signature but different definition , like function overloading. Overriding - Overriding the Definition of base class in the derived class. | ||||
| Sample Code for overloading Sample Code for overriding | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve java oops overloading overriding oops concepts basic interview question overloading vs overriding Asked in 86 Companies basic frequent | ||||
| Try 1 Question(s) Test | ||||
| ||||
| Ans. import java.util.*; class LinkedListSolution{ protected LinkedList list; public LinkedListSolution(){ list = new LinkedList(); } public Object pop() throws NoSuchElementException{ if(list.isEmpty()) throw new NoSuchElementException(); else return list.removeFirst(); } public void push(Object obj){ list.addFirst(obj); } public Object peek() throws NoSuchElementException{ if(list.isEmpty()) throw new NoSuchElementException(); else return list.getFirst(); } public boolean isEmpty(){ return list.isEmpty(); } public String toString(){ return list.toString(); } } class TestStack{ public static void main(String args[]){ LinkedListSolution s = new LinkedListSolution(); s.push("First"); s.push("Second"); s.push("Third"); System.out.println("Top: " s.peek()); s.push("Fourth"); while(!(s.isEmpty())) System.out.println(s.pop()); } } | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve Linkedlist data structures algorithm Asked in 2 Companies basic | ||||
| ||||
| This question was recently asked at 'Kony Labs'.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 : | ||||
| Discuss Correct / Improve Asked in 1 Companies | ||||
Which of the following has been introduced with Java 8 ?
