What is a default package ?

7 Answers  

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What is an object’s lock and which object’s have locks?

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 meant by serialization?

7 Answers  

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How do you create a first line indent?

0 Answers  

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if a java file without any source code is valid java file?

3 Answers   SparkTG,

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why interaction with server using javascript is difficult

1 Answers  

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What is the use of TL?

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Why enumeration is faster than iterator?

0 Answers  

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Is object a data type?

0 Answers  

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What is assembly language?

0 Answers  

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Which data type is class in java?

0 Answers  

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