what is data binding? give the example

1 Answers   TCS,

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What is an class?

0 Answers  

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Which is faster set or list in java?

0 Answers  

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What is aggregation and composition ?

1 Answers   Fidelity,

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What is numel matlab?

0 Answers  

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What are reference variables in java?

0 Answers  

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Name four container classes.

0 Answers  

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Can you override static method in java?

1 Answers  

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Is array size fixed in java?

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 Classloader in Java?

0 Answers  

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hi to all. well can you please tell me that why String class is immutable? Thanks in advance.

5 Answers   Huawei,

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