Java tutorial
//package com.java2s; import android.content.Context; import android.telephony.TelephonyManager; import android.text.TextUtils; public class Main { public static String getIMEI(Context context) { String imeiStr = ((TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE)).getDeviceId(); if (TextUtils.isEmpty(imeiStr)) { imeiStr = "000000000000000"; } return imeiStr; } }