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

Java J2EE (14736)
J2ME (151)
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Java Related Interview Questions

Questions Answers Views Company eMail

How many controlers are there in spring? Plz send me ans

1 5109

When we r go to abstract class and when we go to Interface? i have confusion this question while in interview plz clarify

HCL, Photon,

3 7250

Can we add JBoss server instance to weblogic cluster?

Accenture, IBM,

1 5892

When should I use abstract classes and when should I use interfaces?

2 5818

Which Taglibraury you used in your project? plz send me ans....which we r using generally

2 5191

What is basic concept of static in java ?

iGate,

1 6576

How to call the m1() method of Base class in below snippet ? class Base { public void m1() { System.out.println("Base m1 "); } public void m2() { System.out.println("Base m1 "); } } ====================== class Derived extends Base { public void m1() { System.out.println("Derived m1"); } public void m3() { System.out.println("Derived m3"); } public static void main(String[] args) { Base ob=new Derived(); ob.m1(); //System.out.println("Hello World!"+ob.m1()); } }

Cap Gemini, TCS,

6 9501

In HashSet duplicates are allowed while adding to the HashSet, but while retreiving the object from HashSet is not shown the duplicate values, WHY ?

Cap Gemini,

2 7407

When to use the Collection Classes(HashSet, LinkedHashSet, TreeSet....etc) in real time scenario ?

Cap Gemini,

1 10178

Explain the OOPS concept in Realtime Scenarion ? Take example as CAR. Please explain indetail ?

Cap Gemini,

3103

What is the difference between Enumeration and Iteration interfaces? What is the way of to retreive the objects from these interfaces ?

Cap Gemini,

1 6136

What is the difference between static synchronize() metod and synchronize() method?

Polaris,

1 3789

How can we get one Interface methods whit out using implementation of interface

Oracle,

1 4062

Why wait(),notify(),notifyAll() methods defined in Object class althought we are using in only threads.

Mphasis,

2911

can we write two same methods in outer class and innerclass.

3i Infotech,

1 3374

Un-Answered Questions { Java Related }

What is the purpose of the enableevents() method in java programming?

1292

What is servlet configuration?

1131

What is object class in java?

988

How to find out free diskspace from command prompt?

969

What is application context in spring boot? : Spring Boot

454

What is static class in java?

1151

What causes statelessness?

985

Why oracle type 4 driver is named as oracle thin driver?

914

What is aop logging?

590

What is the use of attribute in servlets?

1096

How to obtain a performance profile of java program

1110

What is meant by nested loop?

1105

What is the transient keyword?

2383

What is the purpose of execute method of action class?

1031

Is it possible for yielded thread to get chance for its execution again ?

1089

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