When you disable a breakpoint, it remains in the Breakpoints view. To have your program stop on a breakpoint that you have disabled, select and enable it. The advantage of disabling a breakpoint instead of deleting it is that you do not have to find the location in the source to set the breakpoint again. In addition, a disabled breakpoint saves any extra settings in the breakpoint.
There are two indicators to the left of a set breakpoint. To the far left is a check box indicating whether the breakpoint is enabled. Enabled breakpoints are indicated with a check mark in this check box, while disabled breakpoints are indicated with no check mark in the check box. When a breakpoint is disabled, you can choose Enable from its pop-up menu in the Breakpoints view or editor (where the menu item is Enable Breakpoint). When a breakpoint is enabled, you can choose Disable from its pop-up menu.