mathcontext

Recently I tried understanding the use of java.math.MathContext but failed to understand properly. Is it used for rounding in java.math.BigDecimal . If yes why does not it round the decimal digits but even mantissa part. From API docs, I came to know that it follows the standard specified in ANSI X3.274-1996 and ANSI X3.274-1996/AM 1-2000 specifications but I did not get them to read online. Please let me know if you have any idea on this. @jatan Thanks for you answer. It makes sense. Can you please explain me MathContext in the context of BigDecimal#round method. There's nothing special about