Java Double Number Divide ceil_divide(float left, float right)

Description

Divides the given left float value by the given right float value and returns the smallest integer value of division result that is not less than the result.

License

Open Source License

Parameter

Parameter	Description
left	the left float value
right	the right float value

Return

the smallest integer value of division result that is not less than the result

Declaration

public static int ceil_divide(float left, float right)

Method Source Code

//package com.java2s;
/**/* www. j  a  va  2s.  c  om*/
 * AADL-Utils
 * 
 * Copyright ? 2012 TELECOM ParisTech and CNRS
 * 
 * TELECOM ParisTech/LTCI
 * 
 * Authors: see AUTHORS
 * 
 * This program is free software: you can redistribute it and/or modify 
 * it under the terms of the Eclipse Public License as published by Eclipse,
 * either version 1.0 of the License, or (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * Eclipse Public License for more details.
 * You should have received a copy of the Eclipse Public License
 * along with this program.  If not, see 
 * http://www.eclipse.org/org/documents/epl-v10.php
 */

import java.math.BigDecimal;

public class Main {
    /**
     * Divides the given left float value by the given right float value and 
     * returns the smallest integer value of division result that is not less than
     * the result.
     * 
     * @param left the left float value
     * @param right the right float value
     * @return the smallest integer value of division result that is not less than
     * the result
     */
    public static int ceil_divide(float left, float right) {
        float resF = divide(left, right);

        if (((int) resF) != resF) {
            return 1 + (int) resF;
        } else {
            return (int) resF;
        }
    }

    /**
     * Divides the given left float value by the given right float value.
     * 
     * @param left the left float value
     * @param right the right float value
     * @return the division result
     */
    public static float divide(float left, float right) {
        BigDecimal iLeft = new BigDecimal(left + "");
        BigDecimal iRight = new BigDecimal(right + "");

        try {
            return iLeft.divide(iRight).floatValue();
        } catch (Exception e) {
            return iLeft.divide(iRight, BigDecimal.ROUND_HALF_DOWN).floatValue();
        }
    }
}