Interview Question and Answers | Search Coding Interview Questions

Interview Questions and Answers - Order By Rating

Q391. Write SQL query to join 2 tables ?

SQL

Ans. Select * from table1 join Select * from table2

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

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

Q392. Difference between Spring and Spring MVC ?

Spring

^{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}

Q393. Can you tell us a use case of reflection in java that you have applied ?

Design

^{This question was recently asked at 'CenturyLink'.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 reflection Asked in 1 Companies}

Q394. Give specific situation about when to go for constructor based injection and setter based injection in spring.

Spring

^{This question was recently asked at 'Tata Consultancy (TCS)'.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}

Q395. Write program to recursively iterate through map ?

Core Java

^{This question was recently asked at 'Cloudflare'.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}

Q396. what is dispatcher servlet@componentScan use ?

Spring Framework

Ans. @ComponentScan in a Spring Application.

With Spring, we use the @ComponentScan annotation along with the @Configuration annotation to specify the packages that we want to be scanned. @ComponentScan without arguments tells Spring to scan the current package and all of its sub-packages.

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

_{Like Discuss Correct / Improve ComponentScan dispatcher @ComponentScan annotation @Configuration annotation Asked in 1 Companies}

Q397. What is stereotype annotation ?

Spring

Ans. These annotations are used to create Spring beans automatically in the application context. The main stereotype annotation is @Component . @Controller: Which is used to create Spring beans at the controller layer. The stereotype annotations in spring are @Component, @Service, @Repository and @Controller

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

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

Q398. Write program to control traffic in a parking lot.

Design

^{This question was recently asked at 'MathWorks'.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}

Q399. When singleton can break and how to resolve it

Design

Ans. Deserialization. In serialization, we can save the object of a byte stream into a file or send over a network. Suppose if you serialize the Singleton class, and then again de-serialize that object, it will create a new instance, hence deserialization will break the Singleton pattern.

To overcome this issue, we need to override readResolve() method in the Singleton class and return the same Singleton instance.

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

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

Q400. C dynamic memory questions

^{This question was recently asked at 'MathWorks'.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}

Q401. Difference between interface and inheritance

Core Java

^{This question was recently asked at 'HCL Technologies'.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}

Q402. Combine and join integer and string list to single list and sort.

Core Java

Ans. Object[] combined = new Object[first.length second.length];
System.arraycopy(first, 0, combined, 0, first.length);
System.arraycopy(second, 0, combined, first.length, second.length);

-- OR --

Object[] combined = Stream.concat(Arrays.stream(first), Arrays.stream(second)).toArray();

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

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

Q403. What are different awt constructs ?

^{This question was recently asked at 'Sabre Corporation'.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}

Q404. Details of networking apis supported by java.

Ans. retrofit 2, volly and OkHttp

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

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

Q405. What is Docker ?

Docker

^{This question was recently asked at 'NIIT'.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}

Q406. What are the 22 possible values of x where x== -x (true) ?

Core Java

Ans. byte x = 0;
short x = 0;
char x = 0;
int x = 0;
int x = Integer.MIN_VALUE;
float x = 0.0f;
float x = -0.0f;
long x = 0;
long x = Long.MIN_VALUE;
double x = 0.0;
double x = -0.0;
Byte x = 0;
Short x = 0;
Character x = 0;
Integer x = 0;
Integer x = Integer.MIN_VALUE;
Float x = 0.0f;
Float x = -0.0f;
Long x = 0L;
Long x = Long.MIN_VALUE;
Double x = 0.0;
Double x = -0.0;

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

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

Q407. What is the WIP branch in SCM ?

^{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}

Q408. Can we increase the buffer size while working with Buffered Streams ? How ?

Core Java

^{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}

Q409. Can we disable auto flushing for PrintWriter ?

Core Java

Ans. Yes

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

_{Like Discuss Correct / Improve}

Q410. Have you ever faced any problem because of PrintWriter buffer and autoflush mechanism ? How did you got rid of it ?

Core Java

Ans. Yes , we faced trouble once wherein we were trying to set certain elements to the PrintWriter. As in some cases the PrintWriter held too much information and hence it would get flushed before we could append those elements.

We disabled auto flushing and provided our own explicit flushing.

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

_{Like Discuss Correct / Improve}

Q411. How elements are passed to the server in case of Get and Post request ?

Web Service

Ans. In case of Get request, form data / values are sent within url whereas these are sent as part of request body in case of Post.

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

_{Like Discuss Correct / Improve}

Q412. Where will you configure database details in tomcat server ?

Tomcat

Ans. Add a file META-INF/context.xml into the root of your web application folder, which defines database connection detail :

File : META-INF/context.xml

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

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

Q413. Difference between kill -9 and kill -15 ?

Unix

^{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}

Q414. How do you debug Javascript code ?

Javascript

^{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}

Q415. Can we have 2 styling classes with a single div element ? Which class will take precedence in case of conflict in such case ?

CSS

^{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}

Q416. Differences between MongoDB and mysql.

Database

^{This question was recently asked at 'RiseSmart'.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}

Q417. Create DB schema for Employee, Department.

Database

^{This question was recently asked at 'RiseSmart India,RiseSmart'.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 db schema database schema database design Asked in 2 Companies}

Q418. What are the distributed caches ?

Server

^{This question was recently asked at 'RiseSmart India'.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 caching server production support Asked in 1 Companies}

Q419. What are the limitations of Java ?

General

^{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}

Q420. What are meta classes in Java ?

Core Java

^{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}

Search Interview Questions

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