Breakpoints are set on an executable line of
To add a breakpoint
In the Properties view or in the code editor, directly to the left of the line where you want to add the breakpoint, right-click (Mac OS: Ctrl+click) the marker bar (vertical ruler) and select Toggle Breakpoint from the popup menu. You can also double-click on the marker bar - this action also toggles a breakpoint.
Also, the new breakpoint appears in the Breakpoints view list.
While the breakpoint is enabled, model thread execution suspends before that line of code is executed. The debugger selects the thread that has suspended and displays the thread's stack frames. The line where the breakpoint was set is highlighted in the code editor.