Create setters for ArrayList

Question

Stackers. I guess this question is pretty forward, but how is it possible for me to create individual setters in ValidateUser?

Right now it is the constructor that sets them all at once, but I need to have individual setters like:

public void setUsername(String user){
    userName = user;
}

... and so forth.

This is my current ArrayList:

ArrayList<ValidateUser> personer = new ArrayList<ValidateUser>();
public Users() {
    personer.add(new ValidateUser("admin", "asdf123", 0.8, "admin"));
    personer.add(new ValidateUser("jesper", "ukamm19", 2.5, "user"));
    personer.add(new ValidateUser("lars", "lol123", 1.5, "user"));
}

You create ValidateUser just like you did above. Just put that in the parameter of addUser(new ValidateUser(....)) — dispake
– dispake, Commented Nov 22, 2013 at 21:32
public void addUser(ValidateUser user) { personer.add(user); } — Steve Kuo
– Steve Kuo, Commented Nov 23, 2013 at 19:51

rs_atl · Accepted Answer · 2013-11-22 21:36:22Z

1

I think your question is confusing, because you mention your ArrayList, but your actual question seems to be about the ValidateUser class. If you want individual setters, you have to modify the ValidateUser class to accept those setters. If you control that class, you can simply do this:

public class ValidateUser {       
   private String user;

   public void setUsername(String user) {
       this.user = user;
   }    
   // etc    
}

answered Nov 22, 2013 at 21:36

rs_atl

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Comments

subash · Accepted Answer · 2013-11-22 21:35:29Z

0

like this..

public class ValidateUser{
    private String user;
    private String pass;
    private double rating;
    private String type;
    public void setUser(String user) {
        this.user = user;
    }
    public void setPass(String pass) {
        this.pass = pass;
    }
    public void setRating(double rating) {
        this.rating = rating;
    }
    public void setType(String type) {
        this.type = type;
    }
}

then you can use like this..

    ValidateUser user = new ValidateUser();
    user.setUser("admin");
    user.setPass("*****");
    user.setRating(5.4);
    user.setType("admin");
    personer.add(user);

edited Nov 22, 2013 at 21:35

answered Nov 22, 2013 at 21:23

subash

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5 Comments

Jesper Bruun Hansen Over a year ago

my question is the same; where to put the individual parameters?

Jesper Bruun Hansen Over a year ago

But how does Java knows which parameter from the new ValidateUser("admin", "asdf123", 0.8, "admin")) to put where?

Jesper Bruun Hansen Over a year ago

yeah it was the second block of code, that did the trick for me! Thanks! :)

Steve Kuo Over a year ago

Consider making all of ValidateUser's fields final.

Jesper Bruun Hansen Over a year ago

@SteveKuo i'm having some problems, when adding more "users". They seem to override each others informations. If not creating users1, users2 objects, how would be able to solve that?

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