Interview Question and Answers | Search Coding Interview Questions

Interview Questions and Answers - Order By Newest

Q1601. What is an execution engine within JVM ?

Core Java

Ans. Execution engine contains interpreter and JIT compiler, which covert byte code into machine code.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve jvm execution engine compiler Asked in 1 Companies}

Q1602. What are some of the Java Naming conventions ?

Core Java

Ans. 1. Class name should be a noun and should start with capital case character.

2. Interface Name should be an adjective and should start with capital case character.

3. Method and Variable names should follow lower camel case notation.

4. package name should be all lower case.

5. constant variables (static final) should be all capital case.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve naming conventions basic}

Q1603. what is the repository structure in svn ?

SVN

^{This question was recently asked at 'Sri Tech'.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}

Q1604. Write program to create a linked list and perform different operations on it.

Algorithm

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 :

_{Like Discuss Correct / Improve Linkedlist data structures algorithm Asked in 2 Companies basic}

Q1605. write program to do matrix multiplication

Core Java

^{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 :

_{Like Discuss Correct / Improve Asked in 1 Companies}

Q1606. Can the foreign key column have null values ?

Database

^{This question was recently asked at 'Volkswagen It services'.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}

Q1607. How do threads share information ?

Core Java

Ans. Through common memory area.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve threads Asked in 1 Companies}

Q1608. What is Substitutability in Java ?

Core Java

Ans. Substitutability means that the type of the variable does not have to exactly match with the type of the value assigned to that variable. For example - Object reference of Parent object can hold derived object.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve}

Q1609. What is the precedence of operators in Java ?

Core Java

Ans. http://introcs.cs.princeton.edu/java/11precedence/

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve operators operator precedence basic}

Q1610. Can we override abstract methods ?

Core Java

Ans. Abstract methods are the methods that need to be overridden in the derived class ( either as implementing method or again abstract method ) so it's not only allowed but its required to override abstract method in the derived class.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve overriding abstract methods overriding abstract methods}

Q1611. What is ACL ?

Operating System

Ans. Access Control List or ACL is the list of permissions attached to an object in the File System.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve acl file system file security object security operating system}

Q1612. Write a Program to delete a node from Linked List ?

Data Structure

^{This question was recently asked at 'Caprus IT'.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 linkedlist delete a node from linked list Asked in 1 Companies}

Q1613. Can we override an abstract method with abstract method in the derived class ?

Core Java

Ans. Yes, but in that case the derived class itself should be abstract. We cannot have an object of a class without definition for the method which has been declared abstract in the parent.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve overriding overriding abstract methods abstract methods}

Q1614. What is the difference between TimeBasedRollingPolicy and SizeBasedTriggeringPolicy within Log4j ? Can we use both together and What would that mean ?

Search Interview Questions

Help us and Others Improve. Please let us know the questions asked in any of your previous interview.