How to create emulator in ADT eclipse

Using the Emulator

Create an Android Emulator Device

The Android tools include an emulator. The emulator behaves like a real Android device in most cases and allows you to test your application without having a real device. You can emulate one or several devices with different configurations. Each configuration is defined via an "Android Virtual Device" (AVD).

To define an AVD open the "AVD Manager" via Windows → AVD Manager and press "New".

Enter The Following Details-

At the end press the button "Create AVD".This will create the device and display it under the "Virtual devices". To test if your setup is correct, select your device and press "Start".

Your device will be started.

Performance

Try to use a smaller resolution for your emulator as for example HVGA. The emulator gets slower the more pixels its needs to render as it is using software rendering.

Also if you have sufficient memory on your computer, add at least 1 GB of memory to your emulator. This is the value "Device ram size" during the creation of the AVD.