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| <h2 title="Class NumberUtil" class="title">Class NumberUtil</h2> |
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| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
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| <pre>public class <span class="typeNameLabel">NumberUtil</span> |
| extends java.lang.Object</pre> |
| <div class="block">Number- and math-related utilities.</div> |
| <dl> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>2.3.20</dd> |
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| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../freemarker/template/utility/NumberUtil.html#getSignum-java.lang.Number-">getSignum</a></span>(java.lang.Number num)</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../freemarker/template/utility/NumberUtil.html#hasTypeThatIsKnownToNotSupportInfiniteAndNaN-java.lang.Number-">hasTypeThatIsKnownToNotSupportInfiniteAndNaN</a></span>(java.lang.Number num)</code> |
| <div class="block">Tells if the type of the parameter number is known to not be able to represent infinite (positive or negative) |
| and NaN.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../freemarker/template/utility/NumberUtil.html#isInfinite-java.lang.Number-">isInfinite</a></span>(java.lang.Number num)</code> </td> |
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| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../freemarker/template/utility/NumberUtil.html#isIntegerBigDecimal-java.math.BigDecimal-">isIntegerBigDecimal</a></span>(java.math.BigDecimal bd)</code> |
| <div class="block">Tells if a <code>BigDecimal</code> stores a whole number.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../freemarker/template/utility/NumberUtil.html#isNaN-java.lang.Number-">isNaN</a></span>(java.lang.Number num)</code> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../freemarker/template/utility/NumberUtil.html#toIntExact-java.lang.Number-">toIntExact</a></span>(java.lang.Number num)</code> |
| <div class="block">Converts a <code>Number</code> to <code>int</code> whose mathematical value is exactly the same as of the original number.</div> |
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| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
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| <h4>isInfinite</h4> |
| <pre>public static boolean isInfinite(java.lang.Number num)</pre> |
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| <h4>isNaN</h4> |
| <pre>public static boolean isNaN(java.lang.Number num)</pre> |
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| <h4>getSignum</h4> |
| <pre>public static int getSignum(java.lang.Number num) |
| throws java.lang.ArithmeticException</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>-1 for negative, 0 for zero, 1 for positive.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.lang.ArithmeticException</code> - if the number is NaN</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>isIntegerBigDecimal</h4> |
| <pre>public static boolean isIntegerBigDecimal(java.math.BigDecimal bd)</pre> |
| <div class="block">Tells if a <code>BigDecimal</code> stores a whole number. For example, it returns <code>true</code> for <code>1.0000</code>, |
| but <code>false</code> for <code>1.0001</code>.</div> |
| <dl> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>2.3.21</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>hasTypeThatIsKnownToNotSupportInfiniteAndNaN</h4> |
| <pre>public static boolean hasTypeThatIsKnownToNotSupportInfiniteAndNaN(java.lang.Number num)</pre> |
| <div class="block">Tells if the type of the parameter number is known to not be able to represent infinite (positive or negative) |
| and NaN. If this returns <code>false</code>, that doesn't mean that it can do that, because it's maybe just that this |
| utility doesn't know that type.</div> |
| <dl> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>2.3.28</dd> |
| </dl> |
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| <h4>toIntExact</h4> |
| <pre>public static int toIntExact(java.lang.Number num)</pre> |
| <div class="block">Converts a <code>Number</code> to <code>int</code> whose mathematical value is exactly the same as of the original number.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.lang.ArithmeticException</code> - if the conversion to <code>int</code> is not possible without losing precision or overflow/underflow.</dd> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>2.3.22</dd> |
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