Eclipse system.out

Question

I am working on an android app. I am able to run the app in a virtual device perfectly. However, I don't want to do this every time. I want to also use system.out.println to print things out in an area of eclipse telling me what is basically working in the program, without just trying it with the virtual device alone. Basically, i use system.out.println in my app but I dont know where it is being displayed. Thanks

Close to http://stackoverflow.com/questions/2220547/why-doesnt-system-out-println-work-in-android That should point you in the right direction. — bschultz, Mar 08 '12 at 18:57

score 4 · Answer 1 · answered Mar 08 '12 at 18:57

4

You should use android.util.Log class to print the log messages. You can view these message either in DDMS perspective of Eclipse or via adb logcat command

answered Mar 08 '12 at 18:57

dhaval

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score 0 · Answer 2 · answered Mar 08 '12 at 18:56

For System.out.println while doing Android apps, Toast seems to be the closest you can get: http://developer.android.com/guide/topics/ui/notifiers/toasts.html

I generally use println to see if a block of code executes, or to do a quick check that a variable has this value, etc. For these, Toast suffices for my purposes although by nature it isn't as fast println.

score 0 · Answer 3 · answered Mar 08 '12 at 19:00

However, I don't want to do this every time.

You can only run Android applications in Android. So, you need to run your app on a virtual device using the emulator, or on Android hardware.

I want to also use system.out.println to print things out in an area of eclipse telling me what is basically working in the program, without just trying it with the virtual device alone.

You are welcome to use the Log class to emit things to LogCat to view in Eclipse. However, the code that uses Log must run on a virtual device using the emulator or on Android hardware.

score 0 · Answer 4 · answered Mar 09 '12 at 02:01

You can deploy your app to an actual device connected to your development machine through a USB connection. Then any logging or printing done with System.out.println will appear in the Eclipse logcat view just as when you are deploying to the emulator.

The following link will help you configure your USB connection for specific devices:

http://developer.android.com/sdk/oem-usb.html

Eclipse system.out

4 Answers4