Can you give examples of different utility methods in String class?

String str = "abcdefghijk";

Following methods help to get information from a String.

System.out.println(str.charAt(2)); //prints a char - c
System.out.println("ABCDEFGH".length());//8
System.out.println("abcdefghij".toString()); //abcdefghij
System.out.println("ABC".equalsIgnoreCase("abc"));//true
System.out.println("abcdefghij".substring(3)); //cdefghij
System.out.println("abcdefghij".substring(3,7)); //defg