這邊已經快變工作筆記用的了... :S   // Informations about kernel are available in the stat file  RandomAccessFile reader = new RandomAccessFile("/proc/stat", "r");  String load = reader.readLine();   String[] toks = load.split(" ");   // Get the jitters of the IDLE time  long oldIdle = Long.parseLong(toks[5]);  // Get the jitters of the other cpu time  long OldCpu = Long.parseLong(toks[2]) + Long.parseLong(toks[3]) + Long.parseLong(toks[4]) + Long.parseLong(toks[6]) + Long.parseLong(toks[7]) + Long.parseLong(toks[8]);   // To measure every 500 ms  Thread.sleep(500);   reader.seek(0);  load = reader.readLine();  reader.close();   toks = load.split(" ");   // Get the CPU time again  long newIdle = Long.parseLong(toks[5]);  long newCpu = Long.parseLong(toks[2]) + Long.parseLong(toks[3]) + Long.parseLong(toks[4]) + Long.parseLong(toks[6]) + Long.parseLong(toks[7]) + Long.parseLong(toks[8]);   // Calculate the average value  float avgUsage = (float)(newCpu - oldCpu...