java

1.              Reverse of string? public class ReverseString {     public static void main(String[] args) {         String str = "Hello";                               StringBuilder sb = new StringBuilder(str);                                             // Sting builder is   function that can access the Sting         System.out.println("Reversed String: " + sb.reverse().toString());    //Reverse is a methods that can implement the   reverse of String //toSting() it con...