Question about String initialization~~~

String a = "sss";
String b = "sss";
the result of a==b is true .
String a = new String("sss");
String b = new String("sss");
however , the result of a==b is false .
why? the operator "==" compares WHAT of two object ??
thanks , ;[

== compare the reference of the object
String s1 = new String("sss") creates a new String object at location xxxxxx, while
String s2 = new String("sss") creates a new String object at location yyyyy.
therefor xxxxxxx != yyyyyyyy
by location..the memory address
String s3 = "sss"; // java create a new String object "sss" at location zzzzzzzz and assign the reference to s3
String s4 = "sss"; // java assign the reference (location zzzzzzzz) to s4
so s3 == s4....
noticed only one String object is created...s3 and s4 holds the reference to the 1st String created..though it is not clearly shown in th ecode...it actually look something like this
String temp = new String("sss");
String s3 = temp;
String s4 = temp;

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Question about String initialization~~~

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