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Why double and float not good for exact result

Quick explanation of Why double and float not good for exact result and not suitable for monetary calculation.Java programming language has some point
http://javarevisited.blogspot.com/2012/02/java-mistake-1-using-float-and-double.html
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Quick explanation of Why double and float not good for exact result and not suitable for monetary calculation.Java programming language has some points where it demands experience one of them is monetary calculation. float and double though used to represent floating point number they are not good candidate for storing monetary value as there calculation is not always exact. instead use BigDecimal or int .

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