This is a Java question

Write the class Password which contains a constructor and 4 methods: ? The shortPassword method returns a random String password which consists of 3 lower case letters. ? The longPassword method returns a random String password of 25 characters. Each character in the password can be a lower case letter, upper case letter, or digit. ? The nextPassword method returns a String password which consists of 3 lower case letters. This method has the property that if it is called enough times, it will return every possible 3 lower case letter passwords exactly once without repeating any. You can generate the passwords in any order. Once all the passwords have been generated, return ???. ? The reset method returns nothing. This method re-initializes things for the nextPassword method so that nextPassword can re-start generating passwords from the beginning.