Example usage for java.lang Number doubleValue

Introduction

In this page you can find the example usage for java.lang Number doubleValue.

Prototype

public abstract double doubleValue();

Source Link

Document

Returns the value of the specified number as a double .

Usage

From source file:NumberUtils.java

/**
 * Converts the given number to a <code>Double</code> (by using <code>doubleValue()</code>).
 *
 * @param number//from   w w w.j a  v a  2s.  com
 * @return java.lang.Double
 */
public static Double toDouble(Number number) {
    return number == null || number instanceof Double ? (Double) number : new Double(number.doubleValue());
}

From source file:Main.java

private static boolean compareScalarValues(Object myValue, Object otherValue) {
    if (myValue == null && otherValue != null || myValue != null && otherValue == null)
        return false;

    if (myValue == null)
        return true;

    if (myValue.getClass().isArray() && !otherValue.getClass().isArray()
            || !myValue.getClass().isArray() && otherValue.getClass().isArray())
        return false;

    if (myValue.getClass().isArray() && otherValue.getClass().isArray()) {
        final int myArraySize = Array.getLength(myValue);
        final int otherArraySize = Array.getLength(otherValue);

        if (myArraySize != otherArraySize)
            return false;

        for (int i = 0; i < myArraySize; i++)
            if (!Array.get(myValue, i).equals(Array.get(otherValue, i)))
                return false;

        return true;
    }/* w  w  w .  j av a  2  s.  c  o  m*/

    if (myValue instanceof Number && otherValue instanceof Number) {
        final Number myNumberValue = (Number) myValue;
        final Number otherNumberValue = (Number) otherValue;

        if (isInteger(myNumberValue) && isInteger(otherNumberValue))
            return myNumberValue.longValue() == otherNumberValue.longValue();
        else if (isFloat(myNumberValue) && isFloat(otherNumberValue))
            return myNumberValue.doubleValue() == otherNumberValue.doubleValue();
    }

    return myValue.equals(otherValue);
}

From source file:fr.gael.dhus.olingo.v1.visitor.functors.Transformers.java

/** unary minus. */
public static Transformer<Number, Number> minus() {
    return new Transformer<Number, Number>() {
        @Override/*from w  w  w .  jav a 2 s.  co m*/
        public Number transform(Number u) {
            return -(u.doubleValue());
        }
    };
}

From source file:com.adobe.acs.commons.mcp.util.AnnotatedFieldDeserializer.java

@SuppressWarnings("squid:S3776")
private static Object convertPrimitiveValue(String value, Class<?> type) throws ParseException {
    if (type.equals(Boolean.class) || type.equals(Boolean.TYPE)) {
        return value.toLowerCase().trim().equals("true");
    } else {//from w w  w .  j ava 2  s  .  co m
        NumberFormat numberFormat = NumberFormat.getNumberInstance();
        Number num = numberFormat.parse(value);
        if (type.equals(Byte.class) || type.equals(Byte.TYPE)) {
            return num.byteValue();
        } else if (type.equals(Double.class) || type.equals(Double.TYPE)) {
            return num.doubleValue();
        } else if (type.equals(Float.class) || type.equals(Float.TYPE)) {
            return num.floatValue();
        } else if (type.equals(Integer.class) || type.equals(Integer.TYPE)) {
            return num.intValue();
        } else if (type.equals(Long.class) || type.equals(Long.TYPE)) {
            return num.longValue();
        } else if (type.equals(Short.class) || type.equals(Short.TYPE)) {
            return num.shortValue();
        } else {
            return null;
        }
    }
}

From source file:net.sf.jasperreports.functions.standard.MathFunctions.java

/**
 * Returns the smallest (closest to negative infinity) double value that is greater than or equal to the argument and is equal to a mathematical integer
 *///from  w ww.j ava  2s  .c o m
@Function("CEIL")
@FunctionParameters({ @FunctionParameter("number") })
public static Double CEIL(Number number) {
    if (number == null) {
        logNullArgument();
        return null;
    }
    return Math.ceil(number.doubleValue());
}

From source file:net.sf.jasperreports.functions.standard.MathFunctions.java

/**
 * Returns the largest (closest to positive infinity) double value that is less than or equal to the argument and is equal to a mathematical integer.
 *///ww  w  . j  a va 2 s.  c  om
@Function("FLOOR")
@FunctionParameters({ @FunctionParameter("number") })
public static Double FLOOR(Number number) {
    if (number == null) {
        logNullArgument();
        return null;
    }
    return Math.floor(number.doubleValue());
}

From source file:net.sf.jasperreports.functions.standard.MathFunctions.java

/**
 * Returns the positive square root of a number. The number must be positive.
 *///w w  w .ja v a  2 s.  c o  m
@Function("SQRT")
@FunctionParameters({ @FunctionParameter("number") })
public static Number SQRT(Number number) {
    if (number == null) {
        logNullArgument();
        return null;
    } else {
        return Math.sqrt(number.doubleValue());
    }
}

From source file:net.sf.jasperreports.functions.standard.MathFunctions.java

/**
 * Returns the sign of a number./* www .j a v a2 s .  co m*/
 */
@Function("SIGN")
@FunctionParameters({ @FunctionParameter("number") })
public static Integer SIGN(Number number) {
    if (number == null) {
        logNullArgument();
        return null;
    } else {
        return (int) Math.signum(number.doubleValue());
    }
}

From source file:com.github.rinde.rinsim.scenario.measure.Metrics.java

static StatisticalSummary toStatisticalSummary(Iterable<? extends Number> values) {
    final SummaryStatistics ss = new SummaryStatistics();
    for (final Number n : values) {
        ss.addValue(n.doubleValue());
    }//from  ww  w  .  j  a va 2s  .c om
    return ss.getSummary();
}

From source file:org.jfree.data.statistics.Statistics.java

/**
 * Returns the mean of a collection of {@code Number} objects.
 *
 * @param values  the values ({@code null} not permitted).
 * @param includeNullAndNaN  a flag that controls whether or not
 *     {@code null} and {@code Double.NaN} values are included
 *     in the calculation (if either is present in the array, the result is
 *     {@link Double#NaN})./*from   www.  j ava  2s.c  o  m*/
 *
 * @return The mean.
 *
 * @since 1.0.3
 */
public static double calculateMean(Collection values, boolean includeNullAndNaN) {

    ParamChecks.nullNotPermitted(values, "values");
    int count = 0;
    double total = 0.0;
    Iterator iterator = values.iterator();
    while (iterator.hasNext()) {
        Object object = iterator.next();
        if (object == null) {
            if (includeNullAndNaN) {
                return Double.NaN;
            }
        } else {
            if (object instanceof Number) {
                Number number = (Number) object;
                double value = number.doubleValue();
                if (Double.isNaN(value)) {
                    if (includeNullAndNaN) {
                        return Double.NaN;
                    }
                } else {
                    total = total + number.doubleValue();
                    count = count + 1;
                }
            }
        }
    }
    return total / count;
}