DTSUD-44

builded Back Button

sudokuExample/src/Main.java

@@ -19,8 +19,19 @@ public class Main {
                 main.setBounds(300, 200, 500, 500);
                 main.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 
+                JPanel rootPanel = new JPanel();
+                rootPanel.setVisible(true);
+                rootPanel.setBounds(0, 0, 500, 500);
+                rootPanel.setBackground(Color.LIGHT_GRAY);
+                rootPanel.setLayout(null);
 
+                main.setContentPane(rootPanel);
 
+                JButton back = new JButton();
+                back.setVisible(true);
+                back.setBounds(5, 5, 100, 25);
+                rootPanel.add(back);
+                back.setText("Back");
 
             }
         });