Returning String[] from a method

Question

I want to return two values from a method stored in an array. How can I do it?
For example: The method needs to return "un" and "pwd".

Answer 1

A tidy and Javaesque way to return multiple values is to create an object to return them in, e.g.

public class Whatever {
   public String getUn() { return m_un; }
   public String setUn(String un) { m_un = un; }
   public String getPwd() { return m_pwd; }
   public String setPwd(String pwd) { m_pwd = pwd; }
};

public Whatever getWhatever() {
   Whatever ret = new Whatever();
   ...
   ret.setPwd(...);
   ret.setUn(...);
   ...
   return ret;
}

Answer 2

If you know how to return any object you would know how to return an array. There is no difference.

Answer 3

Have you tried:

public String[] getLogin() {
   String[] names = new String[]{"uname", "passwd"};
   return names;
}

It's just like retuning any other object.

Answer 4

A HashMap works well for this too. That way you don't have to write a special class.

public Map<String,String> getLogin() {
   Map<String,String> map = new HashMap<String,String>();
   map.put("item1", "uname");
   map.put("item2", "passwd");
   return map;
}