Java, Reset Visibility Of An Object

[Alerhau]

How can I make an object disappear when you click a button, then re-appear when you click it again? My current code is:

int i = 0;
					
					if(i == 0) {
						GridPanel.setVisible(false);
						i++;
					} else {
						GridPanel.setVisible(true);
						Frame.add(GridPanel, BorderLayout.CENTER);
						Frame.setVisible(true);
						i = 0;
					}

What did I do wrong? Right now when you click it one time it dissapears, but does not come back when you click it again.

[Alerhau]

Solved the problem!