Step 4. Step Over a Method call (entire line)

The Step Over button is the first of three buttons you can use to control the execution of your code in the debugger. This particular button causes the debugger to execute the entire line of code in one step. To see this, click the Step Over button in the Debug pane now. Note that Text pane has been updated. The next line of code in the file is now highlighted, indicating that it is the next line that will be executed. In the Debug pane, the line number information has been updated. However, the breakpoint marker remains. If you were to reach this line of code again while executing the program, execution would again stop at this line of code.

Note that the program executed tank.refreshDisplay() without showing you any of the details of its execution. This behavior distinguishes the Step Over button from the Step Into button which we cover next.