Write a Java program that generates a password randomly

Exercise 3: Write a Java program that generates a password randomly. The program asks the user to enter the length of the password and generates randomly an alphanumeric password with the specified length.  You have to define and call a method generatePassword() which takes an integer parameter (n) and prints a random password (character by character using SecureRandom class) of length n following this pattern:

• Generate 2 random letters, then
• Generate 1 random digit

Hints: Numerical representations of:

a)     Letters: start from ‘a’=97 to ‘z’=122

b)     Digits: start from ‘0’=48 to ‘9’=57

Examples:

• Run 1 Password length = 5 Password = et7ar

• Run 2 Password length = 9 Password = fh6hv7cz2.