What do you mean Abstraction in java?

0 Answers   Aspire, Infogain,

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What do you mean by scope of variable?

0 Answers  

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Explain the difference between serializable and externalizable in java?

0 Answers  

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Can singleton class be cloned?

0 Answers  

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What is a parameter example?

0 Answers  

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What is treemap in java?

0 Answers  

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what is jms? features of jms

2 Answers   CTS,

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What are the parameters used in Connection pooling?

1 Answers   IBM,

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How do you insert a line break?

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 are the object and class classes used for?

0 Answers  

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how to accept integer array in java

2 Answers   Tech Guru,

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