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Java Program to round a double passed to BigDecimal
The java.math.BigDecimal class provides operations for arithmetic, scale manipulation, rounding, comparison, hashing, and format conversion.
Firstly, let us pass a double to BigDecimal −
BigDecimal val = new BigDecimal(9.19456);
Now, we will round it −
val = val.setScale(2, BigDecimal.ROUND_HALF_EVEN);
Above, we have used the field ROUND_HALF_EVEN. It is a rounding mode to round towards the "nearest neighbor" unless both neighbours are equidistant, in which case, round towards the even neighbours
The following is an example −
Example
import java.math.BigDecimal;
public class Demo {
public static void main(String args[]) {
BigDecimal val = new BigDecimal(9.19456);
val = val.setScale(2, BigDecimal.ROUND_HALF_EVEN);
System.out.println(val);
}
}Output
9.19
Updated on: 30-Jul-2019
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