Can a constructor be made final?

0 Answers  

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what is the difference between HashMap And HashTable?

5 Answers   Hexaware,

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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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What is meant by nested loop?

0 Answers  

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What is meant by Java ?

2 Answers   CMC, Infosys,

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How do you escape a string?

0 Answers  

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How do you check if a character in a string is a digit or letter?

0 Answers  

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Under what conditions is an object’s finalize() method invoked by the garbage collector?

0 Answers  

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how can i connect to database in a applet ?

1 Answers  

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What is the difference between super class & sub class?

0 Answers  

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what is the Arraylist limit (maximum) by default ?

13 Answers   Fidelity, PlanetSoft, Wipro,

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What is the difference between JDBC 1.0 and JDBC 2.0?

0 Answers   Corent Technology,

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