short cut keys for mac to debug java application

Short Cut Keys To Debug Java Application How To Approach Them

With that feature you have the possibility to go back in time You can simply go to a point in your java stackframe where you have been before.

Short Cut Keys To Debug Java Application How To Approach Them

Vielen Dank Overview Struggling with Test Automation Potential problems and how to approach them Again 10 Tips on Java Debugging with Eclipse 040813 by Daniel Reuter 10 Comments You probably know some post of this kind.

For a good reason I guess that I spent about 1 hour per day debugging my applications.

This makes it even more important to know all the handy features, that makes your life easier and helps you to safe some time.

And it justifies another post on this topic First Tip: Dont debug too much Crazy statement to start a post about debugging.

But it must be said Try to split up your complex logic into many isolated units and write Unit-Tests to check the correct behaviour of your code.

I see it very often, that people are clicking through large web-applications, filling out multiple forms, switching to different pages in the flow, just to check a calculation logic on the last page and after that implementing big parts of the logic in the debug view.

Before starting your tomcat always ask yourself: Is there a way to check the behaviour with a unit test But you can find tons of good material about good code design out there, from here I will focus on a few eclipse debugging tips, which you maybe dont know or you have forgotten over the time.

Breakpoint View: Conditional Breakpoints Extreme useful if you are interested only in a special constellation of your application.

For example if you want to see the 13th run in a loop or you are debugging functionality in an abstract super class and you only want to see one concrete implementation.

You can setup the conditions in the breakpoint-view or with the contextmenu on the blue breakpoint-marker next to your code (Breakpoint Properties).

You can choose to suspend when your code-snippet gets true or when the value of your snippet changes.

Variables View: Show Logical Structure If you want to see the values of a Map or a List in the variables view, its not always that easy with the default setting of eclipse.

If you are using a HashMap for example, you have to click through the physical entries and you are confronted with implementation details of a HashMap.

But there is a small button above the variables Show Logical Structure.

Very handy, especially if you dont have meaningful toString()-methods for the objects in your structure.

You know, he is the guy who is working with PowerPoint or Excel the most time.

What a shame for a developer like me Without Show Logical Structure With Show Logical Structure Variables View: Change Value Instead of restarting your debug session with some slightly changed input data, lets say entered in a web-form you can also change the values of your variables directly during debugging.

Display View Do you know the Display View You can activate it during debugging via Window - Show View - Display.

The code is executed within the context of the current debugging positions, which means that you can use all your variables and even content assist.

To execute your code, just mark it and use the context-menu or CTRLU (execute) or CTRLSHIFTI (inspect).

That are the basics to navigate through your code while you are debugging.

Short Cut Keys For Mac To Debug Java Application