Android--Get CPU usage

public static float Getprocesscpurate () {Float totalCpuTime1 = gettotalcputime ();        float processCpuTime1 = Getappcputime ();        try {thread.sleep (360);        } catch (Exception e) {} float totalCpuTime2 = Gettotalcputime ();        float processCpuTime2 = Getappcputime ();        float cpurate = (processcputime2-processcputime1)/(TOTALCPUTIME2-TOTALCPUTIME1);    return cpurate;        } public static Long Gettotalcputime () {//Get total system CPU usage time string[] Cpuinfos = null; try {BufferedReader reader = new BufferedReader (new InputStreamReader (New FileInput            Stream ("/proc/stat")), 1000);            String load = Reader.readline ();            Reader.close ();        Cpuinfos = Load.split ("");        } catch (IOException ex) {ex.printstacktrace ();           } Long totalcpu = Long.parselong (cpuinfos[2])     + Long.parselong (cpuinfos[3]) + Long.parselong (cpuinfos[4]) + Long.parselong (cpuinfos[6]) + long.parse        Long (cpuinfos[5]) + Long.parselong (cpuinfos[7]) + Long.parselong (cpuinfos[8]);    return totalcpu;        } public static Long Getappcputime () {//Gets the CPU time occupied by the app string[] Cpuinfos = null;            try {int pid = Android.os.Process.myPid (); BufferedReader reader = new BufferedReader (new InputStreamReader (New FileInputStream ("/proc/" + pid +            "/stat")), 1000);            String load = Reader.readline ();            Reader.close ();        Cpuinfos = Load.split ("");        } catch (IOException ex) {ex.printstacktrace (); } Long Appcputime = Long.parselong (cpuinfos[13]) + Long.parselong (cpuinfos[14]) + Long.parselong (CPU        INFOS[15]) + Long.parselong (cpuinfos[16]);    return appcputime; }

Android--Get CPU usage