I need this answer in java

Write a program named Account SignUp that simulates the creation of account credentials. Your program will first prompt the user their username, and if the username is in a valid format, prompt the user to enter a password. A valid username is between 3 to 16 characters long with only letters, numbers and underscores. A valid password must: be at least 8 characters length have at least 1 letter and 1 number have at least 1 spelal character not include a space If the chosen password is valid, inform the user of the successful account creation. If not, Inform the user of why the password is invalid. if the user enters an invalid username, simply inform them with a message and end the program