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String/readme.md

+# String 
+
+Strings in Java are Objects that are backed internally by a char array. 
+Since arrays are immutable(cannot grow), Strings are immutable as well. 
+Whenever a change to a String is made, an entirely new String is created. 
+
+### what is mean by the <a href = "https://www.programiz.com/java-programming/examples/create-immutable-class">Immutable</a> ?
+
+Syntax:
+```java
+<String_Type> <string_variable> = "<sequence_of_string>";
+
+String str = "Geeks";
+```
+
+Memory allotement of String
+Whenever a String Object is created as a literal, the object will be created in String constant pool. 
+This allows JVM to optimize the initialization of String literal.
+Example:
+```java
+String str = "Geeks";
+```
+
+The string can also be declared using new operator i.e. dynamically allocated. 
+In case of String are dynamically allocated they are assigned a new memory location in heap. 
+This string will not be added to String constant pool.
+
+Example:
+```java
+String str = new String(str);
+```
+
+