Answer / manikandan

There are 4 access specifiers available , they are
(1) Public
(2) Protected
(3) Default
(4) Private

and their scopes are

Access|Scope|
Speci | |CLASS | SUBCLASS | PACKAGE |GLOBAL
--------------------------------------------------------------
PUBLIC YES YES YES YES

PROTECTED YES YES YES NO

DEFAULT YES YES NO NO

PRIVATE YES NO NO NO

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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

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