one error line PasswordException 15 error: class User is public , ahould be declared in a file ,named User.java

/*

Chapter 10: The User Class

Programmer:

Date: September 16, 2017

Filename: User.java

Purpose: To provide a User class to test the Password class

*/

public class User

{

private String name;

private Password pswd;

public User(String aName, String password) throws PasswordException

{

name = new String(aName);

pswd = new Password(password);

}

public User(String aName, String password, int pswdUses) throws PasswordException

{

name = new String(aName);

pswd = new Password(password,pswdUses);

}

public User(String aName, String password, boolean autoExpirePswd) throws PasswordException

{

name = new String(aName);

pswd = new Password(password,autoExpirePswd);

}

public String getName()

{

return new String(name);

}

public boolean pswdAutoExpires()

{

return pswd.getAutoExpires();

}

public boolean pswdIsExpiring()

{

return pswd.isExpiring();

}

public int getPswdUses()

{

return pswd.getRemainingUses();

}

public void validate(String password) throws PasswordException

{

pswd.validate(password);

}

public void changePassword(String oldPassword, String newPassword) throws PasswordException

{

try

{

pswd.validate(oldPassword);

}

catch(PasswordExpiredException ex)

{}

pswd.set(newPassword);

}

}