To display the Watch pane, click the Watch tab while you are debugging. The Watch pane displays as a single large pane on the left of the AppBrowser. This is actually two panes; drag the split bar up to reveal the lower pane.
By default, this pane is set to display watch values. To configure a pane to view other information, right-click and choose Properties. The Context Tree Properties dialog box is displayed.
A watch monitors the changing values of variables or expressions during your application run. As your application runs, the value of the watch changes as your application updates the values of the variables contained in the watch expression.
If the execution point moves to a location where any of the variables in the watch expression are out of scope, then the entire watch expression becomes undefined. If the execution point returns to a location where the watch expression can be evaluated, then the Watch pane again displays the current value of the watch expression.
You can add, edit, delete, enable, and disable watches using the Watch pane popup menu.
See also:
Building Applications with JBuilder: Watching expressions