What is the difference between interpreter and compiling ?

2 Answers   TCS,

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What is difference between hash mapping and hash table?

5 Answers   NDS, Wipro,

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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 Answers   TCS,

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How to store image in arraylist in java?

0 Answers  

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What are the steps involved to create a bean?

0 Answers  

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What is finally in exception handling?

7 Answers  

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Can static methods access instance variables in java?

0 Answers  

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what is deadlock? : Java thread

0 Answers  

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What is the original name of java?

0 Answers  

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Explain the importance of throws keyword in java?

0 Answers  

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What is a stringbuilder?

0 Answers  

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Explain what pure virtual function is?

0 Answers   Aricent,

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