new className().methodName(); VS className ref = new className();

Question

I came across a code which my colleague uses inside an eventListner, which is :

private void someActionPerformed(java.awt.event.ActionEvent evt) {                                         
    new className().methodName(); //public class and public void methodName()
}    

I was pretty sure that :

private void someActionPerformed(java.awt.event.ActionEvent evt) {                                         
    className ref = new className(); //public class and public void 
    ref.methodName();
}

is the better option than his, as the previous method instantiates a class every time it is called.
Am I wrong? Any suggestion is appreciated, Please correct me if I am wrong .

Answer 1

Both do the same thing, however one of them (the first) is 1 line shorter.

Your approach is usually recommended when you need to go through more than 2-3 objects, so new Foo().getBar1().getBar2().doStuff() is usually not recommended since it can degrade into spaghetti code and hinder the understandability of the code.