Java Float Number Round round(final float val)

Description

round

License

Open Source License

Declaration

public static int round(final float val) 

Method Source Code

//package com.java2s;
/**/*from ww  w .j av  a2  s  .c  o  m*/
 * Copyright (c) 2008-2012 Ardor Labs, Inc.
 *
 * This file is part of Ardor3D.
 *
 * Ardor3D is free software: you can redistribute it and/or modify it 
 * under the terms of its license which may be found in the accompanying
 * LICENSE file or at <http://www.ardor3d.com/LICENSE>.
 */

public class Main {
    public static int round(final float val) {
        return floor(val + 0.5f);
    }

    public static long round(final double val) {
        return floor(val + 0.5d);
    }

    /**
     * Faster floor function. Does not handle NaN and Infinity. (Not handled when doing Math.floor and just casting
     * anyways, so question is if we want to handle it or not)
     * 
     * @param val
     *            Value to floor
     * @return Floored int value
     */
    public static int floor(final float val) {
        final int intVal = (int) val;
        return val < 0 ? val == intVal ? intVal : intVal - 1 : intVal;
    }

    /**
     * Faster floor function. Does not handle NaN and Infinity. (Not handled when doing Math.floor and just casting
     * anyways, so question is if we want to handle it or not)
     * 
     * @param val
     *            Value to floor
     * @return Floored long value
     */
    public static long floor(final double val) {
        final long longVal = (long) val;
        return val < 0 ? val == longVal ? longVal : longVal - 1 : longVal;
    }
}

Related

1. round(final float a)
2. round(final float f)
3. round(final float value)
4. round(final float x, final float roundFactor)
5. round(float a)
6. round(float amount, int cent)