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TCS Core Java Interview Questions

Questions Answers Views Company eMail

what is sendredirect?

7 9902

what is difference between Action messages and Action errors?

3 14848

What are the steps to do connection pooling in weblogic?

1 7973

what is business delegate?

2 6447

how to use finalize()Method to resources

4 6858

What is Exception handling in Java How do you handle run time errors please explain with an example

2 7472

Diff between C++ and java?

9 11786

what is jndi?

1 4894

what is java bean?where can we use it?

12 29754

what is features of jdk 1.5?

2 13336

different types of threads?

18 56678

public class AboutStrings{ public static void main(String args[]){ String s1="hello"; String s2="hel"; String s3="lo"; String s4=s2+s3; //to know the hash codes of s1,s4. System.out.println(s1.hashCode()); System.out.println(s4.hashCode()); // these two s1 and s4 are having same hashcodes. if(s1==s4){ System.out.println("s1 and s4 are same."); }else System.out.println("s1 and s4 are not same."); } } Somebody told me that, == operator compares references of the objects. In the above example even though s1 and s4 are refering to same object(having same hash codes), it is printing s1 and s4 are not same. Can anybody explain in detail why it is behaving like this? Thanks in Advance RavuriVinod

4 7479

What is the purpose of premetive data types in java?

2 8140

Howmany number of objects we can store in an ArrayList. Is there any limit?

7 14292

What is the basic functionality of DataOutput interface in java?

2 6041

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TCS Core Java Interview Questions

TCS Core Java Interview Questions (175)

Un-Answered Questions

Why do we need url encoding?

926

How are delegates chosen?

840

What are benefits of collections views?

Is Odi used in oracle products?

640

What is abstracting periodical?

901

Can you change the context root for deployed application?

747

Why acetonitrile and water are used as extraction solvent when analysis melamine? I thought they are miscible and won't be able to separate...

1636

Explain how to develop mobile applications using microsoft mobile internet toolkit (mmit) or .net mobile? : Microsoft dot net mobile

877

Is there any way that html can be replaced with xml?

790

Where is itunes exe located?

948

Why Fidelity?

1108

what are the topics choosen for jam round for interviews

1618

explain the difference between oracle- sql and sql server sql ? if both are same y we r using 2 sw.s?

2429

Is it possible for a company to have positive cash flow but be in serious financial trouble?

522

Tell one biggest task for you

1723