Can a serialized object be transferred via network?

0 Answers  

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why we need this (1.object,2.class,3.data hiding,4.encapsulation,5.abstraction,6. polymorphism,7.inheritance)

2 Answers  

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What does system.gc() and runtime.gc() methods do?

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What is stack example?

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Difference between arraylist and hashset in java?

0 Answers  

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Why would you desing a J2EE application so user data is entered by way of a JSP page and managed by an underlying Java Beans class?

5 Answers   Adobe,

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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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How to create a fecelet view?

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How many JVMs can run on a single machine and what is the Just-In-Time(JIT) compiler?

0 Answers   Global Logic,

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Explain public static void main(string args[]).

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When should I use singleton pattern?

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What is consumer in java?

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