Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

public class Main {
    /**
     * When the amount is stored as a long it is in pennies...so $10.25 is stored
     * as 1025 pennies. This method will convert 1025 into the string 10.25
     * 
     * @param amount
     * @return
     */
    public static String convertAmount(Long amount) {
        String displayAmount = "0.00";
        if (amount != null) {
            displayAmount = amount.toString();
            if (displayAmount.length() > 2) {
                displayAmount = displayAmount.substring(0, displayAmount.length() - 2) + "."
                        + displayAmount.substring(displayAmount.length() - 2, displayAmount.length());
            } else {
                displayAmount = "0." + displayAmount;
            }
        }
        return displayAmount;
    }

    /**
     * When the amount is displayed as a string it is 10.25 but when stored as a
     * long it needs to be converted to pennies as 1025
     * 
     * @param amount
     * @return
     */
    public static Long convertAmount(String displayAmount) {
        Long amount = 0L;
        if (displayAmount != null && displayAmount.matches("^\\d+.\\d\\d$")) {
            displayAmount = displayAmount.substring(0, displayAmount.length() - 3)
                    + displayAmount.substring(displayAmount.length() - 2, displayAmount.length());
            amount = new Long(displayAmount);
        }
        return amount;
    }
}