String in Java

What is a String: A string is a sequence of characters. It is stored in a special memory area called the String Constant Pool (SCP) The String Constant Pool (SCP) is a special memory area inside the heap. Ways of creating a string in Java: String literal (Static Memory) Using new keyword (Heap Memory) How to create a string literal: String s1="Java"; When you create a string using a literal, Java first checks: -If the same string already exists in SCP → it reuses it Otherwise → it creates a new object String s1 = "Java" ; String s2 = "Java" ; -> Both s1 and s2 point to the same memory location in the String Pool . public static void main ( String [] args ) { String s = "Test" ; // concat() method appends the string at the end s . concat ( " Automation" ); // This will print Test because strings are immutable objects System . out . println ( s ); } O / P: Test As we can see in the given figure, two objects are created, but the reference variable still refers to "Test" and not to "Automa