Java Related Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Java J2EE (14736)
J2ME (151)
Java Related AllOther (507)

Java Related Interview Questions

Questions Answers Views Company eMail

what is a thread?

IBM, SunGard,

13 22192

What is difference between Forward() and sendRedirect() methode?

Polaris,

14 30878

class{ ... ... interface myinterface{ ... ... } abstract class{ .. .. } ... .. .. } is this possible to write "Interface and/ or Abstract class inside a class ? if possible whcich one is possible is only interface? is only abstract?

Logica CMG,

2 8363

class A{ m2(){ } } class B extends A{ m2(){ } } class c extends B{ m2(){ } } class my_class extends c{ m2(){ } pulic static void main(){ ...My_class a = new my_class(); super.super.super.m2(); is this is leagal if not find what is the legal procedure in order to call A's version of m2(); }

Logica CMG,

8 20844

Name the Implicit variable which is used to access other implicit objectes present in JSP.

AZTEC,

7 19538

How ThreadSafe page attribute will be working in Servlet as well as in JSP?Automatically ThresdSafe is true in JSP so service method will be destroy in each and every request or not?so how thresd will handle srevice method?

AZTEC,

1 5977

what is the difference between Servlet and JSP?Advantage of JSP over Servelt?Any concept present in JSP which we cant implement in Servlet?

ABC, Apere, AZTEC, CTS, CybAge, iFlex, Impact Systems, Sara, TCS,

31 145393

Difference between Include, Forward and sendRedirect in Servlet?

AZTEC, KPIT, TCS,

7 72801

Directive Include and Action Include how both are working in JSP, what is the difference between both?In which suituation we have to choose these elements?

AZTEC,

4 10492

which method is used to know the status of the Thread?

Honeywell,

9 15534

is this possible to create an array of 0 length? if so how? if not so why? coz we have an array in main() likw this "static void main(String [] s) then what it signifies?

Hexaware, TCS,

3 18426

what exactly happens when we execute "Class.forname("Driver class name");"?Explain indetail

Accenture, HP, IBM, Infosys, SAP Labs, SAS, Sasken, Trigent, Wipro,

10 27320

Is it possible to write static method in abstract class? justyfy your answer?

Hexaware,

5 15631

what is the difference between HashMap And HashTable?

Hexaware,

5 13420

what is the difference between abstract class and Interface?where we can use it in realtime projects?

Agile Software, Cognizant, IBM, Innodata, Logica CMG, Mitosis, Nagarro, Value Chain,

23 71528

Un-Answered Questions { Java Related }

Is spring boot a mvc? : Spring Boot

509

Can each java object keep track of all the threads that want to exclusively access it?

965

What is stateless and stateful?

1089

When arithmeticexception is thrown?

1049

What is the major drawback of internal iteration over external iteration?

1044

Does string is thread-safe in java?

1107

What is loose coupling in spring?

442

What is the use of @requestparam annotation in spring?

404

How you will decide when to use prototype scope and when singleton scope bean?

427

Why should I use abstract class?

1122

how to create broker from command prompt?

1036

How forward () method is different from send redirect () method?

990

What is charat ()?

951

Is hibernate easy to learn?

445

What is the difference between Jakarta Struts and Apache Struts? Which one is better to use?

1041

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