AIR.Common.Utilities.MathUtils.java Source code

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Here is the source code for AIR.Common.Utilities.MathUtils.java

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/*******************************************************************************
 * Educational Online Test Delivery System Copyright (c) 2014 American
 * Institutes for Research
 * 
 * Distributed under the AIR Open Source License, Version 1.0 See accompanying
 * file AIR-License-1_0.txt or at http://www.smarterapp.org/documents/
 * American_Institutes_for_Research_Open_Source_Software_License.pdf
 ******************************************************************************/
package AIR.Common.Utilities;

import org.apache.commons.lang3.StringUtils;

public class MathUtils {

    /*
     * This works like the Math.truncate in .NEt.
     */
    // TODO Shiva: I looked but could not find any easy implementation.
    public static double truncate(double d) {
        if (d < 0)
            return -1 * Math.floor(d * -1);
        else
            return Math.floor(d);
    }

    /*
     * returns the truncated integer value for doubleValue string. this does not
     * do any error checking.
     */
    public static double parseAndTruncate(String doubleValue) {
        doubleValue = StringUtils.trim(doubleValue);
        return truncate(Double.parseDouble(doubleValue));
    }
}