BigDecimal : Java Glossary

To convert a long to a BigDecimal use:

// convert a long to BigDecimal, with some implied decimal places.
BigDecimal d = BigDecimal.valueOf( theLong, decimalPlaces );

You can’t use ordinary arithmetic or comparison operators on BigDecimal. You must use methods like BigDecimal.add, .subtract, .multiply,. divide, .pow, .abs, .compareTo …

To convert your BigDecimal to a String for display you can use BigDecimal. toString or BigDecimal. toEngineeringString. It is also possible using Formatter and printf.

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