JAva String回転int parseInt

private Integer str2Int(String s){
    Integer x=0;
    try{
        x=parseInt(s);
    }catch (NumberFormatException e){//      ascii     
        char[] array=s.toCharArray();
        for(int i=0;i47&&j<58){
                switch (j){//         ，  switch char case '0' '1' '2'……
                    case 48: break;//0
                    case 49: x+= h==0 ?1:1*h*10;break;
                    case 50: x+= h==0 ?2:2*h*10;break;
                    case 51: x+= h==0 ?3:3*h*10;break;
                    case 52: x+= h==0 ?4:4*h*10;break;
                    case 53: x+= h==0 ?5:5*h*10;break;
                    case 54: x+= h==0 ?6:6*h*10;break;
                    case 55: x+= h==0 ?7:7*h*10;break;
                    case 56: x+= h==0 ?8:8*h*10;break;
                    case 57: x+= h==0 ?9:9*h*10;break;
                }
            }else{
                return 0;
            }
        }
    }
   return x;
}