How Applets & Servlets will communicate with each other?

2 Answers  

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what is thread? What are the high-level thread states? Or what are the states associated in the thread? : Java thread

0 Answers  

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I want to know the host name and provider name for tcs web mail

5 Answers   RSG, TCS,

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What is struts in java?

0 Answers  

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What are default methods ?

0 Answers  

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What do you understand by soft reference?

0 Answers  

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. Explain Java String Pool.

1 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 the difference b/w PUT and POST method to send data to the server

5 Answers   Mind Tree,

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Outline the major features of java.

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What is file in java?

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Why main method is static in java?

0 Answers  

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