如何为该方法返回值？

Question

I have a method which returns the value of my POJO.

My POJO class's name is Tail .

public Tail getTail(long value1, String value2, int value3) {

    List<Tail> l = /*I get this list via Hibernate. */
    if (l.size() == 1) {
        return (Tail) l.get(0);
    } 
    else if (l.size() > 1) {
        for (Tail t : l) {
            First ik = minorDAO.getFirst(value3, t.getNumber());
            if( ik.getCond().equals("I") ){
                t.setCond("I");
                continue;
            } else {
                return t;   //???????????????               
            }   
        }               
    } else {
        return null;
    }           
}   

In the else statement inside of the foreach loop where the question mark comment is I want to return t, but if I do this, I get an error stating:

"This method must return a result of type Tail".

How can I return the value there?

Answer 1

with that code you dont get the message:

public Tail getTail(long value1, String value2, int value3) {
        List<Tail> l = --> (I get list via Hibernate.)
        if (l.size() == 1) {
            return (Tail) l.get(0);
        } else if (l.size()>1){
            for (Tail t: l) {
                First ik = minorDAO.getFirst(value3, t.getNumber());
                if( ik.getCond().equals("I") ){
                    t.setCond("I");
                    continue;
                } else {
                    return t;
                }   
            }

        }
        return null;

    }

If the method has to return Tail you must deliver it in any possible case. For example:

if each element is true in this case:

if( ik.getCond().equals("I") ){

there would be no return. You iterate about the whole list and nothing happens...