Java BigDecimal Round round(BigDecimal num, int scale)

Description

round

License

Apache License

Declaration

public static BigDecimal round(BigDecimal num, int scale) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.math.BigDecimal;

public class Main {

    public static BigDecimal round(BigDecimal num, int scale) {
        return num.divide(new BigDecimal("1"), scale, BigDecimal.ROUND_HALF_UP);
    }//from w  w  w .j av a2  s.c  o m

    public static BigDecimal round(String num, int scale) {
        num = checkNum(num);
        BigDecimal bd1 = new BigDecimal(num);
        return bd1.divide(new BigDecimal("1"), scale, BigDecimal.ROUND_HALF_UP);
    }

    public static BigDecimal divide(String num1, String num2, int scale) {
        num1 = checkNum(num1);
        if ("".equals(num2)) {
            num2 = "1";
        }
        BigDecimal bd1 = new BigDecimal(num1);
        BigDecimal bd2 = new BigDecimal(num2);
        return bd1.divide(bd2, scale, BigDecimal.ROUND_HALF_UP);
    }

    private static String checkNum(String num) {
        if ("".equals(num)) {
            num = "0";
        }
        return num;
    }
}

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