USER:

package at.fhj.swd.konfmana;


public class User {
    private int id;
    private String username;
    private String password;
    private Group group;

    public User(int id, String username, String password) {
        if(username==null || password ==null){
            throw new IllegalArgumentException("A emtpy password or username is not allowed!");
        }
        this.id = id;
        this.username = username;
        this.password = password;
    }

    public int getId() {
        return this.id;
    }

    public Group getGroup() {
        return this.group;
    }

    public String getUsername() {
        return this.username;
    }

    public String getPassword() {
        return this.password;
    }

    public void setPassword(String password){
        this.password=password;
    }

    public void setGroup(Group group) {
        this.group = group;
    }

    public void setUsername(String username){
        this.username=username;
    }

    public void setId(int id){
        this.id=id;
    }

    public String toString(){
        return this.id+","+this.username+","+this.password;
    }
}