7. inputs a string and checks whether a certain character exists or doesnt exists on that string.
Example Input/Output1:
String: The quick brown fox jumps over the lazy dog.
Find character: j

Found character j on the string.

Example Input/Output2:
String: Python 3.7.0b
Find character: p

Couldnt find character p on the string.

8. inputs a string and checks whether a certain character (regardless of its case) exists or doesnt exists on that string.

Example Input/Output1:
String: high level language
Find character: H

Found character H on the string.

Example Input/Output2:
String: Guido van Rossum
Find character: r

Found character r on the string.

9. inputs a string and prints the location of a certain character  from that string.

Example Input/Output1:
String: Smashing Pumpkins
Check character position for: g

Character g is positioned at: 8

Example Input/Output2:
String: Jose Rizal Memorial State University
Find character: e

Character e is positioned at: 4, 13, 25, 31

Example Input/Output3:
String: Microsoft
Find character: h

Couldnt find character h on the string.

10. inputs a string and prints the number of word(s), letter(s), upper cased letter(s), lower cased letter(s),
number(s), and symbol(s) found on the string.

Example Input/Output:
String: Mr.  Xs sons salary has dramatically increased by 30% on his 3rd month of his job as C++ developer.

Word(s) found:  19
Letter(s): 72
Upper cased letter(s): 3
Lower cased letter(s): 69
Digit(s): 3
Symbol(s): 7

11. inputs a string and prints all the letter(s), upper cased letter(s), lower cased letter(s), number(s), and symbol(s) found on the string.

Example Input/Output:
String: Mr.  Xs sons salary has dramatically increased by 30% on his 3rd month of his job as C++ developer.

Letter(s): MrXssonssalaryhasdramaticallyincreasedbyonhisrdmonthofhisjobasCdeveloper
Upper cased letter(s): MXC
Lower cased letter(s): rssonssalaryhasdramaticallyincreasedbyonhisrdmonthofhisjobasdeveloper
Digit(s): 303
Symbol(s):  .%++.

12. checks whether the password created by the user is acceptable or not acceptable and matched.
Conditions to make it acceptable:
►Minimum length of 7 characters.
►Maximum length of 15 characters.
►Must contain at least 1 upper-cased and 1 lower-cased letters.
►Must contain at least 1 number.
►Must contain at least 1 symbol.


Example Input/Output1:
Create password: M@tchbox20
Confirm password: M@tchbox20

Success!

Example Input/Output2:
Create password: M@tchboxtwenty
Confirm password: M@tchboxtwenty

Invalid password format!


Example Input/Output3:
Create password: Str!k3
Confirm password: Str!k3

Password must have at least 7 characters.

Example Input/Output4:
Create password: M@tchboxtwentyse7en
Confirm password: M@tchboxtwentyse7en

Password should not exceed 15 characters.

Example Input/Output5:
Create password: Python3.7b
Confirm password: Python3.7a

Password mismatch!


13. inputs a string and converts all lower-cased vowels found on that string into upper case. If no vowel is found then it prints Sorry, couldnt find any vowel on that string.

Example Input/Output1:
String: JosE RizaL MemOriaL StAte UniVersity
Result: JOsE RIzAL MEmOrIAL StAtE UnIVErsIty

Example Input/Output2:
String: Pythn Prgrmmng Lngg
Sorry, couldnt find any vowel on that string.


14. gets the product of two numbers without using * symbol. Using of predefined function/command is not allowed.

Example Input/Output1:
a: 7
b: 7

7 x 7 = 49

Example Input/Output2:
a: -3
b: 4

-3 x 4 = -12


15. calculates x^y (x to the power of y) without using * symbol. Using of predefined function/command is not allowed.

Example Input/Output1:
X: 2
Y: 3

2^3 = 8

Example Input/Output2:
X: 4
Y: 4

4^4 = 64