This method is to convert a cent to dollar amount given String as input - Java java.lang

Java examples for java.lang:double Format

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Description

This method is to convert a cent to dollar amount given String as input

Demo Code


import java.math.BigDecimal;
import java.util.StringTokenizer;

public class Main{
    /**/*from   w  ww .  j  a va 2s . c  o  m*/
     * This method is to convert a cent to dollar amount given String as input
     * 
     * @param amount
     * @return
     */
    public static String centsToDollar(String amount) {
        if (amount.length() < 2) {
            amount = PadderUtil.leftPad(amount, 3, '0');
        }
        String firstStr = amount.substring(0, amount.length() - 2);
        String secondStr = amount.substring(amount.length() - 2,
                amount.length());
        // String finalStr = firstStr + "." + secondStr;
        return firstStr + "." + secondStr;

    }
    /**
     * This method is to convert a cent to dollar amount given double as input
     * 
     * @param amount
     * @return
     */
    public static double centsToDollar(long amount) {

        String amountStr = ((Long) amount).toString();
        if (amountStr.length() > 1) {
            String firstStr = amountStr
                    .substring(0, amountStr.length() - 2);
            String secondStr = amountStr.substring(amountStr.length() - 2,
                    amountStr.length());
            String finalStr = firstStr + "." + secondStr;
            // double doubleValue = Double.parseDouble(finalStr);
            return Double.parseDouble(finalStr);
        } else if (amountStr.length() == 1) {

            return (amount / 100d);

        }

        else {
            return 0;
        }

    }
}

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