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:de.christianseipl.utilities.maputils.MapMath.java

/**
 * Multipliziert alle Werte der Map mit {@code _factor}.
 * /*from   w ww  .j  a  v a2 s.  c  o m*/
 * @param <K> ein beliebiger Objekttyp
 * @param _map
 * @param _factor
 * @return Eine neue Map mit dem Produkt aus der alten Map und {@code
 *         _factor}.
 */
public static <K> Map<K, Double> times(Map<? extends K, ? extends Number> _map, final double _factor) {
    return operateOnMap(_map, new NumberTransformer<K, Double>() {

        @Override
        public Double transform(K _key, Number _number) {
            return _number.doubleValue() * _factor;
        }

    });
}

From source file:iDynoOptimizer.MOEAFramework26.src.org.moeaframework.util.tree.NumberArithmetic.java

/**
 * Returns {@code true} if the two numbers are equal; {@code false}
 * otherwise.// ww  w.  j a v a  2 s .com
 * 
 * @param a the first number
 * @param b the second number
 * @return {@code true} if the two numbers are equal; {@code false}
 *         otherwise
 */
public static boolean equals(Number a, Number b) {
    if (isFloatingPoint(a) || isFloatingPoint(b)) {
        return a.doubleValue() == b.doubleValue();
    } else {
        return a.longValue() == b.longValue();
    }
}

From source file:iDynoOptimizer.MOEAFramework26.src.org.moeaframework.util.tree.NumberArithmetic.java

/**
 * Returns {@code true} if the first number is less than the second;
 * {@code false} otherwise./* ww w  .  j  a  va  2s. c o m*/
 * 
 * @param a the first number
 * @param b the second number
 * @return {@code true} if the first number is less than the second;
 *         {@code false} otherwise
 */
public static boolean lessThan(Number a, Number b) {
    if (isFloatingPoint(a) || isFloatingPoint(b)) {
        return a.doubleValue() < b.doubleValue();
    } else {
        return a.longValue() < b.longValue();
    }
}

From source file:iDynoOptimizer.MOEAFramework26.src.org.moeaframework.util.tree.NumberArithmetic.java

/**
 * Returns {@code true} if the first number is greater than the second;
 * {@code false} otherwise./*from  w  w w.j  a v  a 2  s.c  o m*/
 * 
 * @param a the first number
 * @param b the second number
 * @return {@code true} if the first number is greater than the second;
 *         {@code false} otherwise
 */
public static boolean greaterThan(Number a, Number b) {
    if (isFloatingPoint(a) || isFloatingPoint(b)) {
        return a.doubleValue() > b.doubleValue();
    } else {
        return a.longValue() > b.longValue();
    }
}

From source file:iDynoOptimizer.MOEAFramework26.src.org.moeaframework.util.tree.NumberArithmetic.java

/**
 * Returns the value of adding the two numbers
 * //from   w  ww .  jav a 2  s. co m
 * @param a the first number
 * @param b the second number
 * @return the value of adding the two numbers
 */
public static Number add(Number a, Number b) {
    if (isFloatingPoint(a) || isFloatingPoint(b)) {
        return a.doubleValue() + b.doubleValue();
    } else {
        return a.longValue() + b.longValue();
    }
}

From source file:iDynoOptimizer.MOEAFramework26.src.org.moeaframework.util.tree.NumberArithmetic.java

/**
 * Returns the value of subtracting the first from the second number.
 * /*from w ww .  j  a  v  a 2 s  .c o m*/
 * @param a the first number
 * @param b the second number
 * @return the value of subtracting the first from the second number
 */
public static Number sub(Number a, Number b) {
    if (isFloatingPoint(a) || isFloatingPoint(b)) {
        return a.doubleValue() - b.doubleValue();
    } else {
        return a.longValue() - b.longValue();
    }
}

From source file:iDynoOptimizer.MOEAFramework26.src.org.moeaframework.util.tree.NumberArithmetic.java

/**
 * Returns the value of multiplying the two numbers.
 * //from www. jav  a  2  s .  c o  m
 * @param a the first number
 * @param b the second number
 * @return the value of multiplying the two numbers
 */
public static Number mul(Number a, Number b) {
    if (isFloatingPoint(a) || isFloatingPoint(b)) {
        return a.doubleValue() * b.doubleValue();
    } else {
        return a.longValue() * b.longValue();
    }
}

From source file:de.christianseipl.utilities.maputils.MapMath.java

/**
 * Dividiert jedes Element der Map {@code _this} durch den entsprechenden
 * Wert der Map {@code _that}. Das Ergebnis wird im Rckgabewert abgelegt.
 * //from w w w .  ja va2 s  .c o m
 * @param <K> ein beliebiger Objekttyp
 *            
 * @param _this
 *            Dividend
 * @param _that
 *            Divisor
 * @return Eine neue Map mit den Quotienten.
 */
public static <K> Map<K, Double> divide(Map<? extends K, ? extends Number> _this,
        final Map<? extends K, ? extends Number> _that) {

    areKeysEqual(_this, _that);

    return operateOnMap(_this, new NumberTransformer<K, Double>() {

        @Override
        public Double transform(K _key, Number _number) {
            return _number.doubleValue() / _that.get(_key).doubleValue();
        }

    });
}

From source file:de.christianseipl.utilities.maputils.MapMath.java

/**
 * Multipliziert die Werte zweier Maps paarweise miteinander und gibt eine
 * neue Map zurck./*from w ww. ja v a 2 s . c o  m*/
 * 
 * @param <K> ein beliebiger Objekttyp
 *            
 * @param _this
 *            Erster Faktor
 * @param _that
 *            Zweiter Faktor
 * @return Eine neue Map mit dem paarweisen Produkt der beiden Faktoren.
 */
public static <K> Map<K, Double> times(Map<? extends K, ? extends Number> _this,
        final Map<? extends K, ? extends Number> _that) {

    areKeysEqual(_this, _that);

    return operateOnMap(_this, new NumberTransformer<K, Double>() {

        @Override
        public Double transform(K _key, Number _number) {
            return _number.doubleValue() * _that.get(_key).doubleValue();
        }

    });
}

From source file:iDynoOptimizer.MOEAFramework26.src.org.moeaframework.util.tree.NumberArithmetic.java

/**
 * Returns the value of dividing the first number by the second.  If the
 * second argument is {@code 0} and function protection is enabled, this
 * function returns {@code 1} regardless of the first argument's value.
 * /*w w w.ja v a2  s  .  c om*/
 * @param a the first number
 * @param b the second number
 * @return the value of dividing the first number by the second
 */
public static Number div(Number a, Number b) {
    if (isFloatingPoint(a) || isFloatingPoint(b)) {
        if ((Math.abs(b.doubleValue()) < Settings.EPS) && Settings.isProtectedFunctions()) {
            return 1.0;
        } else {
            return a.doubleValue() / b.doubleValue();
        }
    } else {
        if ((b.longValue() == 0) && Settings.isProtectedFunctions()) {
            return 1L;
        } else {
            return a.longValue() / b.longValue();
        }
    }
}