Java利用Sigar获取进程详细信息：PID、CPU、内存

//java通过sigar获取进程的相关信息 ，包含各个进程的PID、名称、CPU使用率、所占内存大小等
     
     private static final int   SLEEP_TIME = 1000 * 5;
    private static final String HEADER     = "PID\tUSER\tSTIME\tSIZE\tRSS\tSHARE\tSTATE\tTIME\t%CPU\tCOMMAND";
       
    public void getProcessCpu_top(){
     try{
      Sigar sigarImpl = new Sigar();
         SigarProxy sigarProxy = SigarProxyCache.newInstance(sigarImpl, SLEEP_TIME);
         int cnt = 2;
          while (cnt-->0) {
             Shell.clearScreen();
//              System.out.println(Uptime.getInfo(sigar));
             System.out.println(sigar.getProcStat());
             System.out.println(sigar.getCpuPerc());
             System.out.println(sigar.getMem());
             System.out.println(sigar.getSwap());
//              System.out.println();
             System.out.println("---------cnt="+cnt+"--------");
             System.out.println(HEADER);

             //long[] pids = Shell.getPids(sigar, args);
             long[] pids = sigarImpl.getProcList();

             for (int i = 0; i < pids.length; i++) {
                 long pid = pids[i];

                 String cpuPerc = "?";
                 List info;
                 try {