Stepping into/over/out of the routine call

To step into the routine call:

Choose Run > Step Into or click (Step Into) on the toolbar to execute one source code statement at a time and follow execution in a routine call.

After the debugger executes the source code statement, the current statement arrow moves to the next statement. The debugger uses these rules to find the next statement:

If the executed statement did not call a routine, the current statement arrow moves to the next statement in the source code.
If the executed statement called a routine, the current statement arrow moves to the first statement in the called routine.
If the executed statement is the last statement in a called routine, the current statement arrow moves to the statement in the calling routine.

To step over the routine call:

Choose Run > Step Over or click (Step Over) on the toolbar to execute the current statement and advance to the next statement in the source code. The current statement or routine executes; then program execution stops.

If the current statement is a routine call, program execution continues until it reaches:

end of the called routine
breakpoint
watchpoint
eventpoint that stops execution

To step out of the routine call:

Choose Run > Step Return or click (Step Return) advance to the next statement to execute the rest of the current routine and stop program execution after the routine returns to its caller. This command causes execution to return up the call chain.

The current routine executes and returns to its caller; then program execution stops.