Example usage for java.lang Number toString

Introduction

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

Prototype

public String toString()

Source Link

Document

Returns a string representation of the object.

Usage

From source file:org.eclipse.dawnsci.doe.DOEUtils.java

/**
 * //from ww w. j  av  a 2  s. c  om
 * @param info
 * @param orderedFields
 * @param index
 * @param ret
 * @throws Exception 
 */
protected static void getInfo(final RangeInfo info, final List<FieldContainer> orderedFields, final int index,
        final List<RangeInfo> ret) throws Exception {

    if (index >= orderedFields.size()) {
        // NOTE: You must implement hashCode and equals 
        // on all beans. These are used to avoid adding
        // repeats.
        final RangeInfo clone = deepClone(info);
        ret.add(clone);
        return;
    }

    final FieldContainer field = orderedFields.get(index);

    final Object originalObject = field.getOriginalObject();
    final String stringValue = (String) getBeanValue(originalObject, field.getName());
    if (stringValue == null) {
        getInfo(info, orderedFields, index + 1, ret);
        return;
    }

    final String range = stringValue.toString();
    final List<? extends Number> vals = DOEUtils.expand(range, field.getAnnotation().type());
    for (Number value : vals) {
        if (vals.size() > 1)
            info.set(new FieldValue(field.getOriginalObject(), field.getName(), value.toString()));
        getInfo(info, orderedFields, index + 1, ret);
    }

}

From source file:com.discovery.darchrow.util.CollectionsUtil.java

/**
 * ?.//  ww  w.  j a va2  s  .  co  m
 *
 * @param <O>
 *            the generic type
 * @param objectCollection
 *            the object collection
 * @param scale
 *            ?
 * @param propertyNames
 *            ????
 * @return the map< string, list< o>>
 * @see #sum(Collection, String...)
 */
public static <O> Map<String, Number> avg(Collection<O> objectCollection, int scale, String... propertyNames) {

    //
    Map<String, Number> sumMap = sum(objectCollection, propertyNames);

    int size = objectCollection.size();

    //  ??? HashMap TreeMap
    Map<String, Number> map = new LinkedHashMap<String, Number>(size);

    for (Map.Entry<String, Number> entry : sumMap.entrySet()) {
        String key = entry.getKey();
        Number value = entry.getValue();

        map.put(key, NumberUtil.getDivideValue(new BigDecimal(value.toString()), size, scale));
    }

    return map;
}

From source file:com.feilong.commons.core.util.CollectionsUtil.java

/**
 * ?.//from ww  w.  j  av  a 2 s.co m
 *
 * @param <O>
 *            the generic type
 * @param objectCollection
 *            the object collection
 * @param scale
 *            ?
 * @param propertyNames
 *            ????
 * @return the map< string, list< o>>
 * @throws BeanUtilException
 *             the bean util exception
 * @throws NullPointerException
 *             the null pointer exception
 * @see #sum(Collection, String...)
 */
public static <O> Map<String, Number> avg(Collection<O> objectCollection, int scale, String... propertyNames)
        throws BeanUtilException, NullPointerException {

    //
    Map<String, Number> sumMap = sum(objectCollection, propertyNames);

    int size = objectCollection.size();

    //  ??? HashMap TreeMap
    Map<String, Number> map = new LinkedHashMap<String, Number>(size);

    for (Map.Entry<String, Number> entry : sumMap.entrySet()) {
        String key = entry.getKey();
        Number value = entry.getValue();

        map.put(key, NumberUtil.getDivideValue(new BigDecimal(value.toString()), size, scale));
    }

    return map;
}

From source file:com.xwtec.xwserver.util.json.util.JSONUtils.java

/**
 * Produce a string from a Number./*w w  w  . ja  va  2s  .  co  m*/
 *
 * @param n A Number
 * @return A String.
 * @throws JSONException If n is a non-finite number.
 */
public static String numberToString(Number n) {
    if (n == null) {
        throw new JSONException("Null pointer");
    }
    testValidity(n);

    // Shave off trailing zeros and decimal point, if possible.

    String s = n.toString();
    if (s.indexOf('.') > 0 && s.indexOf('e') < 0 && s.indexOf('E') < 0) {
        while (s.endsWith("0")) {
            s = s.substring(0, s.length() - 1);
        }
        if (s.endsWith(".")) {
            s = s.substring(0, s.length() - 1);
        }
    }
    return s;
}

From source file:eu.geopaparazzi.library.util.Utilities.java

/**
 * Tries to adapt a value to the supplied type.
 *
 * @param value   the value to adapt.// www.j  a  v a  2s .com
 * @param adaptee the class to adapt to.
 * @return the adapted object or <code>null</code>, if it fails.
 */
public static <T> T adapt(Object value, Class<T> adaptee) {
    if (value instanceof Number) {
        Number num = (Number) value;
        if (adaptee.isAssignableFrom(Double.class)) {
            return adaptee.cast(num.doubleValue());
        } else if (adaptee.isAssignableFrom(Float.class)) {
            return adaptee.cast(num.floatValue());
        } else if (adaptee.isAssignableFrom(Integer.class)) {
            return adaptee.cast(num.intValue());
        } else if (adaptee.isAssignableFrom(Long.class)) {
            return adaptee.cast(num.longValue());
        } else if (adaptee.isAssignableFrom(String.class)) {
            return adaptee.cast(num.toString());
        } else {
            throw new IllegalArgumentException();
        }
    } else if (value instanceof String) {
        if (adaptee.isAssignableFrom(Double.class)) {
            try {
                Double parsed = Double.parseDouble((String) value);
                return adaptee.cast(parsed);
            } catch (Exception e) {
                return null;
            }
        } else if (adaptee.isAssignableFrom(Float.class)) {
            try {
                Float parsed = Float.parseFloat((String) value);
                return adaptee.cast(parsed);
            } catch (Exception e) {
                return null;
            }
        } else if (adaptee.isAssignableFrom(Integer.class)) {
            try {
                Integer parsed = Integer.parseInt((String) value);
                return adaptee.cast(parsed);
            } catch (Exception e) {
                return null;
            }
        } else if (adaptee.isAssignableFrom(String.class)) {
            return adaptee.cast(value);
        } else {
            throw new IllegalArgumentException();
        }
    } else {
        throw new IllegalArgumentException(
                "Can't adapt attribute of type: " + value.getClass().getCanonicalName()); //$NON-NLS-1$
    }
}

From source file:com.erudika.para.utils.Utils.java

/**
 * Abbreviates an integer by adding a letter suffix at the end.
 * E.g. "M" for millions, "K" for thousands, etc.
 * @param number a big integer//from w w w. j  ava2 s .c  o m
 * @param decPlaces decimal places
 * @return the rounded integer as a string
 */
public static String abbreviateInt(Number number, int decPlaces) {
    if (number == null) {
        return "";
    }
    String abbrevn = number.toString();
    // 2 decimal places => 100, 3 => 1000, etc
    decPlaces = (int) Math.pow(10, decPlaces);
    // Enumerate number abbreviations
    String[] abbrev = { "K", "M", "B", "T" };
    boolean done = false;
    // Go through the array backwards, so we do the largest first
    for (int i = abbrev.length - 1; i >= 0 && !done; i--) {
        // Convert array index to "1000", "1000000", etc
        int size = (int) Math.pow(10, (i + 1) * 3);
        // If the number is bigger or equal do the abbreviation
        if (size <= number.intValue()) {
            // Here, we multiply by decPlaces, round, and then divide by decPlaces.
            // This gives us nice rounding to a particular decimal place.
            number = Math.round(number.intValue() * decPlaces / size) / decPlaces;
            // Add the letter for the abbreviation
            abbrevn = number + abbrev[i];
            // We are done... stop
            done = true;
        }
    }
    return abbrevn;
}

From source file:org.kordamp.json.util.JSONUtils.java

/**
 * Produce a string from a Number./*from  w  w w.  ja va  2s . c om*/
 *
 * @param n A Number
 * @return A String.
 * @throws JSONException If n is a non-finite number.
 */
public static String numberToString(Number n) {
    if (n == null) {
        throw new JSONException("Null pointer");
    }
    testValidity(n);

    // Shave off trailing zeros, if possible, but preserve a single zero after decimal point

    String s = n.toString();
    if (s.indexOf('.') > 0 && s.indexOf('e') < 0 && s.indexOf('E') < 0) {
        while (s.endsWith("0")) {
            s = s.substring(0, s.length() - 1);
        }
        if (s.endsWith(".")) {
            s = s + '0';
        }
    }
    return s;
}

From source file:no.kantega.publishing.common.data.attributes.NumberAttribute.java

public NumberAttribute(String name, Number value) {
    super(name, value.toString());
}

From source file:org.springmodules.validation.util.condition.range.NumberAwareComparableComparator.java

/**
 * Compares the two given numbers. These numbers are compared regardless of
 * their type.//from   w w w .j  a va 2 s  .  co  m
 * 
 * @param n1
 *            The first number.
 * @param n2
 *            The second number.
 * @return possitive number if <code>n1 &gt; n2</code>, negative number if
 *         <code>n1 &lt; n2</code>, or 0 (Zero) if <code>n1 == n2</code>.
 */
protected int compareNumbers(Number n1, Number n2) {
    BigDecimal bd1 = new BigDecimal(n1.toString());
    BigDecimal bd2 = new BigDecimal(n2.toString());
    return bd1.compareTo(bd2);
}

From source file:no.kantega.publishing.common.data.attributes.NumberAttribute.java

public void setValue(Number value) {
    super.setValue(value.toString());
}