Java Guava | sqrt(int x, RoundingMode mode) method of IntMath Class
The method sqrt(int x, RoundingMode mode) of Guava’s IntMath class returns the square root of x, rounded with the specified rounding mode.
public static int sqrt(int x, RoundingMode mode)
- IllegalArgumentException: if x < 0.
- ArithmeticException: if mode is RoundingMode.UNNECESSARY and sqrt(x) is not an integer.
|CEILING||Rounding mode to round towards positive infinity.|
|DOWN||Rounding mode to round towards zero.|
|FLOOR||Rounding mode to round towards negative infinity.|
|HALF_DOWN||Rounding mode to round towards “nearest neighbor” unless both neighbors are equidistant, in which case round down.|
|HALF_EVEN||Rounding mode to round towards the “nearest neighbor” unless both neighbors are equidistant, in which case, round towards the even neighbor.|
|HALF_UP||Rounding mode to round towards “nearest neighbor” unless both neighbors are equidistant, in which case round up.|
|UNNECESSARY||Rounding mode to assert that the requested operation has an exact result, hence no rounding is necessary.|
|UP||Rounding mode to round away from zero.|
Below given are some examples to understand the implementation in a better way :
Square root of x1 is: 15 Square root of x2 is: 12
java.lang.IllegalArgumentException: x (-65) must be >= 0
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