package org.nwapw.abacus; import org.nwapw.abacus.window.Window; import javax.swing.*; public class Abacus { private Window mainUi; public Abacus(){ init(); } private void init() { try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); } catch (ClassNotFoundException | InstantiationException | UnsupportedLookAndFeelException | IllegalAccessException e) { e.printStackTrace(); } mainUi = new Window(); mainUi.setVisible(true); } public static void main(String[] args){ new Abacus(); } }