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Big decimal rounding

Posted on Oct 17, 2006 at 11:16 PM 23 Views

Hi,

I have a bigdecimal numbers 5.5, 1.2, and 0.5. I want to convert all these numbers as 6, 2, 1.

Could you please tell how to achieve this?. I tried with ceiling, round_up, but I didnt get exact result.

Thanks-in-advance.

Sunita.

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  • author's profile photo Rich Heilman
    Rich Heilman
    Posted on Oct 18, 2006 at 12:00 AM
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    Please try this.

    
import java.math.*;

public class TestBigD {

	public static void main(final String[] args) {

		BigDecimal bd = new BigDecimal("12.2");
		BigInteger bi = new BigInteger("0");

		bi = bd.setScale(0, BigDecimal.ROUND_CEILING).toBigInteger();
		System.out.println(bi);
	}

}

    Regards,

    Rich Heilman

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    • Rich Heilman
      Oct 18, 2006 at 12:53 AM

      Neither do I 😊

      In this case, BD is a BigDecimal which has a value of 12.2. I created an instance of BigInteger call BI, so we use the setScale method of BigDecimal to set how we want to round this value, notice the ROUND_CEILING, of course this will always round up regardless if it is less than 5 or greater, then it is passing the rounded value to our BigInteger bi. Then simply writing out bi.

      Regards,

      Rich Heilman

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