Computer scienceProgramming languagesKotlinAdditional instrumentsStandard library

BigDecimal

Rounding with a given precision

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Write a program that reads two input parameters: first is a string that represents a big rational number, and second is a newScale of Int type.

Convert an input string to BigDecimal (make BigDecimal instance) and round it towards the "nearest neighbor"; if both neighbors are equidistant, round down. Precision depending on newScale.

Print the result.

Tip: Use HALF_DOWN mode.

Sample Input 1:

5.666
2

Sample Output 1:

5.67

Sample Input 2:

-3.5
0

Sample Output 2:

-3

Write a program in Kotlin

Code Editor
IDE100

import java.math.BigDecimal

import java.math.RoundingMode

fun main() {

// write your code here

}

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