Java tutorial
//package com.java2s; //License from project: Apache License import android.os.Build; import java.lang.reflect.InvocationTargetException; import java.lang.reflect.Method; public class Main { @SuppressWarnings("unchecked") public static String getDeviceSerial() { String serial = "null"; try { Class clazz = Class.forName("android.os.Build"); Class paraTypes = Class.forName("java.lang.String"); Method method = clazz.getDeclaredMethod("getString", paraTypes); if (!method.isAccessible()) { method.setAccessible(true); } serial = (String) method.invoke(new Build(), "ro.serialno"); } catch (ClassNotFoundException e) { e.printStackTrace(); } catch (NoSuchMethodException e) { e.printStackTrace(); } catch (InvocationTargetException e) { e.printStackTrace(); } catch (IllegalAccessException e) { e.printStackTrace(); } return serial; } }