Android Tutorial 67
In Eclipse, use the Debug perspective to set breakpoints, step
through code, and watch the LogCat logging information about your
application. This time, when the application fails, you can
determine the cause using the debugger. You might need to click
through several dialogs as you set up to debug within Eclipse. If
you allow the application to continue after throwing the exception,
you can examine the results in the Debug perspective of Eclipse. If
you examine the LogCat logging pane, you see that your
application was forced to exit due to an unhandled exception.
Debugging My First Android App in Eclipse.