606 lines
22 KiB
HTML
606 lines
22 KiB
HTML
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<title>Lfraction</title>
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<meta name="date" content="2013-09-20">
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<h2 title="Class Lfraction" class="title">Class Lfraction</h2>
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<ul class="inheritance">
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<li>java.lang.Object</li>
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<ul class="inheritance">
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<li>Lfraction</li>
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<dt>All Implemented Interfaces:</dt>
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<dd>java.lang.Comparable<<a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a>></dd>
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<br>
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<pre>public class <span class="strong">Lfraction</span>
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extends java.lang.Object
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implements java.lang.Comparable<<a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a>></pre>
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<div class="block">This class presents fractions of form n/d where n and d are long integer
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numbers. Basic operations and arithmetics for fractions are provided.</div>
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<h3>Constructor Summary</h3>
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<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation">
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<caption><span>Constructors</span><span class="tabEnd"> </span></caption>
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<tr>
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<th class="colOne" scope="col">Constructor and Description</th>
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</tr>
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<tr class="altColor">
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<td class="colOne"><code><strong><a href="Lfraction.html#Lfraction(long, long)">Lfraction</a></strong>(long a,
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long b)</code>
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<div class="block">Constructor.</div>
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</td>
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</tr>
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</table>
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</li>
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</ul>
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<h3>Method Summary</h3>
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<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
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<caption><span>Methods</span><span class="tabEnd"> </span></caption>
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<tr>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colLast" scope="col">Method and Description</th>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>java.lang.Object</code></td>
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<td class="colLast"><code><strong><a href="Lfraction.html#clone()">clone</a></strong>()</code>
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<div class="block">Clone of the fraction.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><code>int</code></td>
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<td class="colLast"><code><strong><a href="Lfraction.html#compareTo(Lfraction)">compareTo</a></strong>(<a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a> m)</code>
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<div class="block">Comparision of fractions.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code><a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a></code></td>
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<td class="colLast"><code><strong><a href="Lfraction.html#divideBy(Lfraction)">divideBy</a></strong>(<a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a> m)</code>
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<div class="block">Quotient of fractions.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><code>boolean</code></td>
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<td class="colLast"><code><strong><a href="Lfraction.html#equals(java.lang.Object)">equals</a></strong>(java.lang.Object m)</code>
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<div class="block">Equality test.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code><a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a></code></td>
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<td class="colLast"><code><strong><a href="Lfraction.html#fractionPart()">fractionPart</a></strong>()</code>
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<div class="block">Extract fraction part of the (improper) fraction
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(a proper fraction without the integer part).</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><code>long</code></td>
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<td class="colLast"><code><strong><a href="Lfraction.html#getDenominator()">getDenominator</a></strong>()</code>
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<div class="block">Public method to access the denominator field.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>long</code></td>
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<td class="colLast"><code><strong><a href="Lfraction.html#getNumerator()">getNumerator</a></strong>()</code>
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<div class="block">Public method to access the numerator field.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><code>int</code></td>
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<td class="colLast"><code><strong><a href="Lfraction.html#hashCode()">hashCode</a></strong>()</code>
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<div class="block">Hashcode has to be equal for equal fractions.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>long</code></td>
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<td class="colLast"><code><strong><a href="Lfraction.html#integerPart()">integerPart</a></strong>()</code>
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<div class="block">Integer part of the (improper) fraction.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><code><a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a></code></td>
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<td class="colLast"><code><strong><a href="Lfraction.html#inverse()">inverse</a></strong>()</code>
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<div class="block">Inverse of the fraction.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>static void</code></td>
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<td class="colLast"><code><strong><a href="Lfraction.html#main(java.lang.String[])">main</a></strong>(java.lang.String[] param)</code>
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<div class="block">Main method.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><code><a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a></code></td>
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<td class="colLast"><code><strong><a href="Lfraction.html#minus(Lfraction)">minus</a></strong>(<a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a> m)</code>
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<div class="block">Difference of fractions.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code><a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a></code></td>
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<td class="colLast"><code><strong><a href="Lfraction.html#opposite()">opposite</a></strong>()</code>
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<div class="block">Opposite of the fraction.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><code><a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a></code></td>
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<td class="colLast"><code><strong><a href="Lfraction.html#plus(Lfraction)">plus</a></strong>(<a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a> m)</code>
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<div class="block">Sum of fractions.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code><a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a></code></td>
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<td class="colLast"><code><strong><a href="Lfraction.html#times(Lfraction)">times</a></strong>(<a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a> m)</code>
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<div class="block">Multiplication of fractions.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><code>double</code></td>
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<td class="colLast"><code><strong><a href="Lfraction.html#toDouble()">toDouble</a></strong>()</code>
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<div class="block">Approximate value of the fraction.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>static <a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a></code></td>
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<td class="colLast"><code><strong><a href="Lfraction.html#toLfraction(double, long)">toLfraction</a></strong>(double f,
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long d)</code>
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<div class="block">Double value f presented as a fraction with denominator d > 0.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><code>java.lang.String</code></td>
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<td class="colLast"><code><strong><a href="Lfraction.html#toString()">toString</a></strong>()</code>
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<div class="block">Conversion to string.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>static <a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a></code></td>
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<td class="colLast"><code><strong><a href="Lfraction.html#valueOf(java.lang.String)">valueOf</a></strong>(java.lang.String s)</code>
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<div class="block">Conversion from string to the fraction.</div>
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<h3>Methods inherited from class java.lang.Object</h3>
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<code>finalize, getClass, notify, notifyAll, wait, wait, wait</code></li>
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</a>
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<h3>Constructor Detail</h3>
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<a name="Lfraction(long, long)">
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<h4>Lfraction</h4>
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<pre>public Lfraction(long a,
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long b)</pre>
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<div class="block">Constructor.</div>
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<dl><dt><span class="strong">Parameters:</span></dt><dd><code>a</code> - numerator</dd><dd><code>b</code> - denominator > 0</dd></dl>
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<h3>Method Detail</h3>
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<a name="main(java.lang.String[])">
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<h4>main</h4>
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<pre>public static void main(java.lang.String[] param)</pre>
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<div class="block">Main method. Different tests.</div>
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</li>
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<a name="getNumerator()">
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<h4>getNumerator</h4>
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<pre>public long getNumerator()</pre>
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<div class="block">Public method to access the numerator field.</div>
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<dl><dt><span class="strong">Returns:</span></dt><dd>numerator</dd></dl>
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</li>
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</ul>
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<a name="getDenominator()">
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<h4>getDenominator</h4>
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<pre>public long getDenominator()</pre>
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<div class="block">Public method to access the denominator field.</div>
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<dl><dt><span class="strong">Returns:</span></dt><dd>denominator</dd></dl>
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<h4>toString</h4>
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<pre>public java.lang.String toString()</pre>
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<div class="block">Conversion to string.</div>
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<dl>
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<dt><strong>Overrides:</strong></dt>
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<dd><code>toString</code> in class <code>java.lang.Object</code></dd>
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<dt><span class="strong">Returns:</span></dt><dd>string representation of the fraction</dd></dl>
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<a name="equals(java.lang.Object)">
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<h4>equals</h4>
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<pre>public boolean equals(java.lang.Object m)</pre>
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<div class="block">Equality test.</div>
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<dl>
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<dt><strong>Overrides:</strong></dt>
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<dd><code>equals</code> in class <code>java.lang.Object</code></dd>
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<dt><span class="strong">Parameters:</span></dt><dd><code>m</code> - second fraction</dd>
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<dt><span class="strong">Returns:</span></dt><dd>true if fractions this and m are equal</dd></dl>
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</ul>
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<a name="hashCode()">
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<h4>hashCode</h4>
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<pre>public int hashCode()</pre>
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<div class="block">Hashcode has to be equal for equal fractions.</div>
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<dl>
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<dt><strong>Overrides:</strong></dt>
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<dd><code>hashCode</code> in class <code>java.lang.Object</code></dd>
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<dt><span class="strong">Returns:</span></dt><dd>hashcode</dd></dl>
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</li>
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</ul>
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<a name="plus(Lfraction)">
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<h4>plus</h4>
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<pre>public <a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a> plus(<a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a> m)</pre>
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<div class="block">Sum of fractions.</div>
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<dl><dt><span class="strong">Parameters:</span></dt><dd><code>m</code> - second addend</dd>
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<dt><span class="strong">Returns:</span></dt><dd>this+m</dd></dl>
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</li>
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</ul>
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<a name="times(Lfraction)">
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<h4>times</h4>
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<pre>public <a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a> times(<a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a> m)</pre>
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<div class="block">Multiplication of fractions.</div>
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<dl><dt><span class="strong">Parameters:</span></dt><dd><code>m</code> - second factor</dd>
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<dt><span class="strong">Returns:</span></dt><dd>this*m</dd></dl>
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</li>
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</ul>
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<a name="inverse()">
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<h4>inverse</h4>
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<pre>public <a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a> inverse()</pre>
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<div class="block">Inverse of the fraction. n/d becomes d/n.</div>
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<dl><dt><span class="strong">Returns:</span></dt><dd>inverse of this fraction: 1/this</dd></dl>
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</ul>
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<a name="opposite()">
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<h4>opposite</h4>
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<pre>public <a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a> opposite()</pre>
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<div class="block">Opposite of the fraction. n/d becomes -n/d.</div>
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<dl><dt><span class="strong">Returns:</span></dt><dd>opposite of this fraction: -this</dd></dl>
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</li>
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</ul>
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<a name="minus(Lfraction)">
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<h4>minus</h4>
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<pre>public <a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a> minus(<a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a> m)</pre>
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<div class="block">Difference of fractions.</div>
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<dl><dt><span class="strong">Parameters:</span></dt><dd><code>m</code> - subtrahend</dd>
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<dt><span class="strong">Returns:</span></dt><dd>this-m</dd></dl>
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<a name="divideBy(Lfraction)">
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<h4>divideBy</h4>
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<pre>public <a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a> divideBy(<a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a> m)</pre>
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<div class="block">Quotient of fractions.</div>
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<dl><dt><span class="strong">Parameters:</span></dt><dd><code>m</code> - divisor</dd>
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<dt><span class="strong">Returns:</span></dt><dd>this/m</dd></dl>
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<a name="compareTo(Lfraction)">
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<h4>compareTo</h4>
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<pre>public int compareTo(<a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a> m)</pre>
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<div class="block">Comparision of fractions.</div>
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<dl>
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<dt><strong>Specified by:</strong></dt>
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<dd><code>compareTo</code> in interface <code>java.lang.Comparable<<a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a>></code></dd>
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<dt><span class="strong">Parameters:</span></dt><dd><code>m</code> - second fraction</dd>
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<dt><span class="strong">Returns:</span></dt><dd>-1 if this < m; 0 if this==m; 1 if this > m</dd></dl>
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<a name="clone()">
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<h4>clone</h4>
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<pre>public java.lang.Object clone()
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throws java.lang.CloneNotSupportedException</pre>
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<div class="block">Clone of the fraction.</div>
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<dl>
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<dt><strong>Overrides:</strong></dt>
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<dd><code>clone</code> in class <code>java.lang.Object</code></dd>
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<dt><span class="strong">Returns:</span></dt><dd>new fraction equal to this</dd>
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<dt><span class="strong">Throws:</span></dt>
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<dd><code>java.lang.CloneNotSupportedException</code></dd></dl>
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</li>
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<a name="integerPart()">
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<h4>integerPart</h4>
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<pre>public long integerPart()</pre>
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<div class="block">Integer part of the (improper) fraction.</div>
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<dl><dt><span class="strong">Returns:</span></dt><dd>integer part of this fraction</dd></dl>
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</ul>
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<a name="fractionPart()">
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<h4>fractionPart</h4>
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<pre>public <a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a> fractionPart()</pre>
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<div class="block">Extract fraction part of the (improper) fraction
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(a proper fraction without the integer part).</div>
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<dl><dt><span class="strong">Returns:</span></dt><dd>fraction part of this fraction</dd></dl>
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</ul>
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<a name="toDouble()">
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<h4>toDouble</h4>
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<pre>public double toDouble()</pre>
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<div class="block">Approximate value of the fraction.</div>
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<dl><dt><span class="strong">Returns:</span></dt><dd>numeric value of this fraction</dd></dl>
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</li>
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</ul>
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<a name="toLfraction(double, long)">
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<h4>toLfraction</h4>
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<pre>public static <a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a> toLfraction(double f,
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long d)</pre>
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<div class="block">Double value f presented as a fraction with denominator d > 0.</div>
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<dl><dt><span class="strong">Parameters:</span></dt><dd><code>f</code> - real number</dd><dd><code>d</code> - positive denominator for the result</dd>
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<dt><span class="strong">Returns:</span></dt><dd>f as an approximate fraction of form n/d</dd></dl>
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<a name="valueOf(java.lang.String)">
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<h4>valueOf</h4>
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<pre>public static <a href="Lfraction.html" title="class in <Unnamed>">Lfraction</a> valueOf(java.lang.String s)</pre>
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<div class="block">Conversion from string to the fraction. Accepts strings of form
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that is defined by the toString method.</div>
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<dl><dt><span class="strong">Parameters:</span></dt><dd><code>s</code> - string form (as produced by toString) of the fraction</dd>
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<dt><span class="strong">Returns:</span></dt><dd>fraction represented by s</dd></dl>
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