LRU Project on Java

Question

I had a project about LRU on Java. I used ArrayList to keep my Objects (which named Kisi), deleted the last Obj to set size of the ArrayList (to 5). I have finished but I wonder that is there any easier way to do this?

By the way I used swing and spring to create obj's.

There is a part of my code:

Kisi k = ctx.getBean("kisi", Kisi.class);
k.setName(textName.getText());
k.setSurname(textSurname.getText());

for (int i = 0; i < liste.size(); i++) {
//  if (k.getName().equalsIgnoreCase(liste.get(i).getName())
//  && k.getSurname().equalsIgnoreCase(liste.get(i).getSurname())) {
//      liste.remove(i);
//  }
    if(k.equals(liste.get(i))) {
        liste.remove(i);
    }
}

liste.add(0, k);
model.clear();

if (liste.size() == 6) {
    JOptionPane.showMessageDialog(contentPane, liste.get(liste.size()-1)+" Silindi");
    liste.remove(liste.size()-1);
}

for (Kisi kisi : liste) {
    model.addElement(kisi);
}

textName.setText("");
textSurname.setText("");

Answer 1

The loop you are using to find the index of k object that matches your item in liste ArrayList could give better performance and readability if you use indexOf method instead.

That is:-
Instead of the for loop;

for (int i = 0; i < liste.size(); i++) {
//                  if (k.getName().equalsIgnoreCase(liste.get(i).getName())
//                          && k.getSurname().equalsIgnoreCase(liste.get(i).getSurname())) {
//                      liste.remove(i);
//              }
                    if(k.equals(liste.get(i))) {
                        liste.remove(i);

                    }
                }

I recommend you to simply do something like this;

liste.remove(liste.indexOf(k));

This returns -1 if k is not found in liste
You can use that return value instead of matching liste.size() == 6, if that suits your use case as well.

Java Doc

There may be other suggestions possible, but I guess more information will be required about your code as mentioned in the comments. Hope this helps!