package com.zy.asrs.utils;

import com.core.common.Arith;

import java.math.BigDecimal;
import java.text.DecimalFormat;

/**
 * Created by vincent on 2020/8/27
 */
public class Utils {

    private static final DecimalFormat fmt = new DecimalFormat("##0.00");

    public static float scale(Float f){
        if (f == null || f == 0f || Float.isNaN(f)) {
            return 0f;
        }
        return (float) Arith.multiplys(2, f, 1);
    }

    public static String zerofill(String msg, Integer count){
        if (msg.length() == count){
            return msg;
        } else if (msg.length() > count){
            return msg.substring(0, 16);
        } else {
            StringBuilder msgBuilder = new StringBuilder(msg);
            for (int i = 0; i<count-msg.length(); i++){
                msgBuilder.insert(0,"0");
            }
            return msgBuilder.toString();
        }
    }


}