google cloud messaging - What is difference between android device id and device token?

Question

I am getting android device id from this code of snippet which is for my device is "3b3472d8998af818"

protected String getDeviceId() {
    return Secure.getString(this.getContentResolver(), Secure.ANDROID_ID);
}

and android device token from this code of snippet which is for my device is
APA91bGeA3xOsXocz-eNOklONNVYwHyjvzyVMPQtC54_GX5Npx5fjWjpDbw6XOGqFi-a0lz7gL4BQlZXN-opPyHwJxxo3-1jyqjc1df6y8KwdVj7tUHVObcE3sF0XSpSngUkq6UfCEUTwgmsv-sjGuK863Y4R1kmHA

GCMRegistrar.register(this.context, CommonUtilities.SENDER_ID);

I don't know what is the difference between two ids?

Answer 1

Waitting for answers