How to remove arrow on JMenuItem?

Question

I need help with JMenuItem. I didn't write any line about arrow on JMenuItem. So how to disable that? Here's the image:

Answer 1

Let me try to reproduce the issue.

• Add JMenuItem in JMenu and then in JMenuBar .

sample code: ( No issues )

JMenuBar menuBar = new JMenuBar();
JMenu menu = new JMenu("A Menu");

JMenu submenu = new JMenu("A submenu");
JMenuItem menuItem = new JMenuItem("Another item");
submenu.add(menuItem);              //comment this line and look the output
menu.add(submenu);

menuBar.add(menu);

---

• Add JMenu directly in JMenuBar without any JMenuItem .

sample code: ( This creates problem )

JMenuBar menuBar = new JMenuBar();
JMenu menu = new JMenu("A Menu");

JMenu submenu = new JMenu("A submenu");
menu.add(submenu);

menuBar.add(menu);

---

• Add JMenuItem directly in JMenuBar .

sample code: ( No issues )

JMenuBar menuBar = new JMenuBar();
JMenu menu = new JMenu("A Menu");

JMenuItem menuItem = new JMenuItem("Another item");
menu.add(menuItem);

menuBar.add(menu);

Now the problem is crystal clear, if it's leaf node then add JMenuItem instead of JMenu in JMenuBar .

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Answer 2

I had the same issue with JavaFX with my MenuItems having arrows all over the place.

Thanks to @Braj response I realized that I was creating my items this way:

MenuItem saveMenu = new Menu();

instead of

MenuItem saveMenu = new MenuItem();

This, of course, works in Java thanks to polymorphism but created this side effect in my app. That being said, this can help you better organize your menus using a tree structure like Save > Save to File / Save to DB / Save As...