1).what is the difference between below examples String s="vijay"; String s=new String("vijay");

12 Answers   Mascon, Satyam, TCS,

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what is the difference between statis block and static variable

7 Answers  

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types of applets?.

7 Answers   TCS,

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explain about casting of objects?

5 Answers  

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Which class is the superclass for every class in java programming?

0 Answers  

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How HashMap implemented in java? how it internally works when values are added or searched from hashMap?What is the difference betweenthe implementation of hashmap and Linked Hashmap?

3 Answers   IBM,

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Why java is made?

0 Answers  

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What is java in simple terms?

0 Answers  

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Are the equals() and hashCode() protected methods of object class?

1 Answers   Avaya,

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Why we do exception handling in java and how many types of exceptions are there?

0 Answers  

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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 extension method in java?

0 Answers  

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