將字符串兩兩分組

 public static String[] Pro(String number){
	  String[] str;
	  int length = number.length();
	  int group = length/2;
	  if(0==length % 2)
	  {
		  str=new String[group];		
	  }
	  else
	  {
		  str= new String[group+1];	
	  }
	  for(int i=0,j=0;i<group;i++,j+=2)
	  {
		  str[i]=number.substring(j, j+2);
		  if(i==(group-1))
		  {
			  if(1 == length % 2)			   
			  {
				  str[i+1] = number.substring(length-1,length);
			  }			 
		  }
	  }
	return str;
  }