Java Number Convert convertToLong(String decimal, int precision)

Description

convert To Long

License

Open Source License

Declaration

public static long convertToLong(String decimal, int precision) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import com.google.common.base.Strings;
import java.math.BigDecimal;

public class Main {

    public static long convertToLong(String decimal, int precision) {
        if (Strings.isNullOrEmpty(decimal)) {
            return 0L;
        }/*from w  ww .ja  va  2 s .  c  om*/
        long time = 1L;
        for (int i = 0; i < precision; i++) {
            time = time * 10L;
        }
        BigDecimal bigDecimal = new BigDecimal(decimal);
        if (time != 1L) {
            bigDecimal = bigDecimal.multiply(new BigDecimal(time));
        }
        return bigDecimal.longValueExact();
    }
}

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