Why doesn't 0.1 + 0.2 equal 0.3 in Java? Trying BigDecimal for monetary calculations

I added 0.1 and 0.2 to check if they equal 0.3, but it returned false. The formula should be correct, so why?This is a ...
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Confused Trump, Suffers String Of Mental Slips Onstage; Nebraska Rally Sparks Buzz

India vs Uruguay: Salt Lake Stadium sees promising turnout after Brazil game India take on Uruguay in Kolkata, with fans returning to Salt Lake Stadium after the massive turnout for the Brazil ...