Get the phone number that's plugged into your computer

Problem description
Title, if Java can do it better. Hope that we can provide the code, not to give a train of thought also line. Solutions 1
It's not the way it is.
private void Loadphonestatus ()
{
Telephonymanager phonemgr= (Telephonymanager) This.getsystemservice (Context.telephony_service);
Txtphonemodel.settext (Build.model); Phone model
Txtsdkversion.settext (Build.VERSION.SDK);//SDK version number
Txtosversion.settext (Build.VERSION.RELEASE);//firmware/os version number
} Solution 2
ADB Shell Cat/system/build.prop

Get the phone number that's plugged into your computer