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Fixed, Floating, and Exact Computation with Java's Bigdecimal

By Mike Cowlishaw and Joshua Bloch and Joseph D. Darcy, July 01, 2004

Features in the J2SE 1.5 BigDecimal class make calculations easy.
July, 2004: Fixed, Floating, and Exact Computation with Java's BigDecimal 

BigDecimal rate=new BigDecimal("1.05");
BigDecimal cost=new BigDecimal("0.70");
System.out.println(rate.multiply(cost).setScale(2, BigDecimal.ROUND_HALF_UP));
// displays 0.74

Example 1: Tax calculation.



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