Jan 10, 2012 · Java String is immutable, String will Store the value in the form of object. so if u assign the value String a="a"; it will create an object and the value is stored in that and again if …

Mar 14, 2014 · When a string is created and if the string already exists in the pool, the reference of the existing string will be returned, instead of creating a new object and returning its …

String class is immutable, and you can not change value of immutable object. But in case of String, if you change the value of string than it will create new string in string pool and than …

Nov 11, 2008 · Why are string objects immutable in java? Because Java uses the concept of string literal. Suppose there are 5 reference variables, all refers to one object "Future".If one …

Aug 5, 2014 · Java Strings are immutable. In your first example, you are changing the reference to the String , thus assigning it the value of two other Strings combined: str + " Morning" . On …

Jan 6, 2014 · String is immutable, but through reflection you're allowed to change the String class. You've just redefined the String class as mutable in real-time. You could redefine methods to …

Jan 27, 2014 · The primary reason that Java String is designed as an immutable class is simplicity. It makes it easier to write correct programs, and read / reason about other people's …

Jan 30, 2013 · a) Imagine StringPool facility without making string immutable , its not possible at all because in case of string pool one string object/literal e.g. "Test" has referenced by many …

Sep 18, 2008 · In Java this is known as interning. The Java compiler here is just following an standard memory optimization done by compilers for decades. And to address the same issue …

Jun 8, 2014 · Typically the cost is O(n+m) for concatenating two immutable Strings, though it can go as low as O(log (m+n)) if you use a tree-based string data structure like a Rope. Plus you …