Java Number Round roundToNearestMultipleOf(final long num, final long multipleOf)

Description

round To Nearest Multiple Of

License

Apache License

Declaration

public static long roundToNearestMultipleOf(final long num, final long multipleOf) 

Method Source Code

//package com.java2s;
/*/*from www . ja va2 s.c  om*/
 * Copyright 2014 NAVER Corp.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

public class Main {
    public static long roundToNearestMultipleOf(final long num, final long multipleOf) {
        if (num < 0) {
            throw new IllegalArgumentException("num cannot be negative");
        }
        if (multipleOf < 1) {
            throw new IllegalArgumentException("cannot round to nearest multiple of values less than 1");
        }
        if (num < multipleOf) {
            return multipleOf;
        }
        if ((num % multipleOf) >= (multipleOf / 2.0)) {
            return (num + multipleOf) - (num % multipleOf);
        } else {
            return num - (num % multipleOf);
        }
    }
}

Related

1. roundToNearest(int num, int nearest)
2. roundToNearestEven(int mantissa, int numOfBitsToRoundOff)
3. roundToNearestInterval(int i, int j)
4. roundToNearestK(float v, int k)
5. roundToNearestMultiple(double number, double multiple)
6. roundToNearestN(float value, float n)
7. roundToNearestPowerOfTen(double value)
8. roundToNext(int val, int factor)
9. roundToNextPowerOfTwo(int value)