Strings are important concepts in programming and are data types that allow storage of character sequences. String methods are built-in functions that are called on a string to either get information or manipulate data.
String methods allow you to manipulate string data, which is very important in handling string data values.
Example: String Greet = "Welcome Java"; The example above will create a string object for the string “Greet” in the heap memory.
This method will append the new string to the previous string, just like in the example below: String Greet = "Hello"; String GreetEveryone = Greet.concat("Everyone"); Advanced Concepts of Java String Methods