Underlying mechanism of String pooling in Java?

Question

I was curious as to why Strings can be created without a call to new String(), as the API mentions it is an Object of class java

Answer 1

String pool as it is pool of string stored in heap for exp:

String s="Test";
String s1="Test";    

both gets stored in heap and refers to a single "Test" thus s1=s, while

String s=new String("Test");

is an object that also get stored in heap but different form s1=s refer here