How to change button size in Java BorderLayout?

Question

Java

Hello! I'm trying to make an application in Java BorderLayout, but when adding a button, the question arises: how to change its size?

// Создание кнопок и прикрепление иконок
JButton save = new JButton(new ImageIcon("save.png"));
// Попытка установить размер
save.setPreferredSize(new Dimension(25, 110));