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TCS Core Java Interview Questions

Questions Answers Views Company eMail

what is sendredirect?

7 9948

what is difference between Action messages and Action errors?

3 14879

What are the steps to do connection pooling in weblogic?

1 7993

what is business delegate?

2 6464

how to use finalize()Method to resources

4 6894

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

2 7495

Diff between C++ and java?

9 11846

what is jndi?

1 4903

what is java bean?where can we use it?

12 29866

what is features of jdk 1.5?

2 13354

different types of threads?

18 56768

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 7508

What is the purpose of premetive data types in java?

2 8158

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

7 14351

What is the basic functionality of DataOutput interface in java?

2 6064

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TCS Core Java Interview Questions

TCS Core Java Interview Questions (175)

Un-Answered Questions

Can hashtable have duplicate values?

880

Where is the merge in word?

581

Should you start out with sharded or with a non-sharded mongodb environment?

How Hadoop’s CLASSPATH plays a vital role in starting or stopping in Hadoop daemons?

389

Where is the setup exe file on my computer?

935

A web service can only be written in .net? State whether true or false.

966

Do all declaration statements result in a fixed reservation in memory?

887

What are the types of windings present in the ceiling fan? What winding will be effective first when we started the fan?What are the resistance and inductance ratios comparatively at the initial speed and full speed of the fan?

2956

What is supply management in srm ?

927

How can a user move the existing db instances outside vpc into the vpc?

174

Does visual studio work on windows 7?

760

What does stateless mean?

1018

Should I sign an individual cla or a corporate cla?

195

find the kp ki kd from the transper function G(S)=29.44s+04707/1.5349s2+s

1887

What is linq and lambda expressions?

124