what is the advantage of string object as compared to string literal

Question

i want to know where to use string object(in which scenario in my java code). ok i understood the diff btwn string literal and string object, but i want to know that since

Answer 1

literal strings are objects created in a String Pool and if they have the same value, they are referencing to the same object.

System.out.println("abc"=="abc"); // the output is true

Meanwhile, string object are real objects in memory and if they have the same value, there's no guarantee that they are referencing to the same object.

String a = new String("abc");
String b = new String("abc");
System.out.println(a==b); // the output is false