What Data Type Should Be Used for Currency in Java?

import java.math.BigDecimal;

public class CurrencyExample {
    public static void main(String[] args) {
        BigDecimal currencyValue = new BigDecimal("100.50");
        System.out.println(currencyValue);
    }
}

BigDecimal sum = value1.add(value2);
System.println(sum);
}
}


The result of adding 100.50 and 50.25 will be 150.75.

Formatting Currency Values

To format a currency value for display, you can use the DecimalFormat class from the java.text package.

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

public class CurrencyExample {
    public static void main(String[] args) {
        BigDecimal currencyValue = new BigDecimal("1000");

        DecimalFormat decimalFormat = new DecimalFormat("#,##0.00");
        String formattedCurrency = decimalFormat.format(currencyValue);

        System.println(formattedCurrency);
    }
}

This will format the currency value as "1,000.00". The # symbol represents a digit, and the 0 symbol represents a digit or zero.

Conclusion

When working with currency values in Java, it is recommended to use the BigDecimal class for accurate representation and calculations. This class offers arbitrary precision arithmetic and avoids the limitations of primitive data types. Additionally, the DecimalFormat class can be used to format currency values for display.

By choosing the appropriate data type and following best practices, you can ensure accurate and reliable handling of currency values in your Java applications.