Thread: Button not showing unicode

I am trying to display an arrow on a button using Unicode , but all I am getting is (...)
it only works when ever I remove the setPreferredSize. Is there any other way to have it displayed??
code:

JButton backSpace = new JButton("\u2190");
		backSpace.setPreferredSize(new Dimension(25, 25));

I believe the elipses indicates the button size is not large enought to display the desired character. Shrink the character or increase the size of the button or whatever is restraining it to be too small.

I have changed the font size, but all it does is shrink the (...)

--- Update ---

Works, I made the button transparent and now it show the arrow

 JButton backSpace = new JButton(keys[16]);
		 backSpace.setOpaque(false);
		 backSpace.setContentAreaFilled(false);
		 backSpace.setBorderPainted(true);
		 backSpace.setBorder(new LineBorder(Color.RED, 2));
		 backSpace.setPreferredSize(new Dimension(25, 25));
		 backSpace.setForeground(Color.RED);