Chrome's Development Tools on Android Is it possible to open Chrome's Development Tools in Android? Is it possible to do so with Java?

I tried going into the settings and such, but is it possible to access the console and create cookie for the browser?
Directly on the device? I don't think so. If you have a computer running chrome, and a usb cord for your phone, then you can use Chrome's remote debugger to access a web console on your computer that can inspect pages open in chrome, and any in-app webviews that have debugging enabled.

Basically, you just enable the developer options and remote debugging on your phone, and go to chrome://inspect in your computer's browser.

To debug an app's webview you'll need to modify the app to enable debugging.

See Google's documentation for more information and detailed instructions.