Java programming....Please do not use arrays. these programs we will use only for loops, while loops and if else statement. we can not use arrays or functions. please explain it an easy way. Thank you

P4.2 Write programs that read a sequence of integer inputs and print a. The smallest and largest of the inputs. b. The number of even and odd inputs. c. Cumulative totals. For example, if the input is 1729, the program should print 1 8 10 19. d. All adjacent duplicates. For example, if the input is 1 3 3455666 2, the program should print 356 P4.3 Write programs that read a line of input as a string and prirt a. Only the uppercase letters in the string. b. Every second letter of the string c. The string, with all vowels replaced by an underscore. d. The number of vowels in the string. e. The positions of all vowels in the string