Java编程实现遍历两个MAC地址之间所有MAC的方法

/** 输出两个MAC区间内的所有MAC地址 */ 
public static void countBetweenMac(String macStart, String macEnd){ 
  long start = turnMacToLong(macStart); 
  long end = turnMacToLong(macEnd); 
  String prefix = macStart.substring(0,9); 
  String hex = null; 
  String suffix = null; 
  StringBuffer sb = null; 
  for(long i=start; i< end +1; i++){ 
   hex = Long.toHexString(i); 
   suffix = hex.substring(hex.length()-6); 
   sb = new StringBuffer(suffix); 
   sb.insert(2, ":"); 
   sb.insert(5, ":"); 
   System.out.println(prefix + sb.toString()); 
  } 
}
/** 将MAC转换成数字 */ 
public static long turnMacToLong(String MAC){ 
  String hex = MAC.replaceAll("\\:", ""); 
  long longMac = Long.parseLong(hex, 16); 
  return longMac; 
}

/** 计算区间内MAC总数 */ 
public static long countMac1(String macStart, String macEnd){ 
  String hexStart = macStart.replaceAll("\\:", ""); 
  String hexEnd = macEnd.replaceAll("\\:", ""); 
  long start = Long.parseLong(hexStart, 16); 
  long end = Long.parseLong(hexEnd, 16); 
  return end-start+1; 
}
/** 计算区间内MAC总数 */ 
public static long countMac(String macStart, String macEnd){ 
  String[] start = macStart.split("\\:"); 
  String[] end = macEnd.split("\\:"); 
  int x,y,z; 
  int a,b,c; 
  x = Integer.parseInt(start[3],16); 
  y = Integer.parseInt(start[4],16); 
  z = Integer.parseInt(start[5],16); 
  a = Integer.parseInt(end[3],16); 
  b = Integer.parseInt(end[4],16); 
  c = Integer.parseInt(end[5],16); 
  return (a-x)*16*16*16 + (b-y)*16*16 + c-z+1; 
}