280 

   280 

   281 <a name="XPath.Use"></a>

   281 <a name="XPath.Use"></a>

   282 <h3>5. Using the XPath API</h3>

   282 <h3>5. Using the XPath API</h3>

   283 

   283 

   284 Consider the following XML document:

   284 Consider the following XML document:

   286 <blockquote>

   285 <blockquote>

   287 <pre>

   286 <pre>

   288 <widgets>

   287 <widgets>

   289 <widget>

   288 <widget>

   290 <manufacturer/>

   289 <manufacturer/>

   364 <p>

   363 <p>

   365 The XPath 1.0 Number data type is defined as a double. However, the XPath 

   364 The XPath 1.0 Number data type is defined as a double. However, the XPath 

   366 specification also provides functions that returns Integer type. To facilitate

   365 specification also provides functions that returns Integer type. To facilitate

   367 such operations, the XPath API allows Integer and Long to be used in 

   366 such operations, the XPath API allows Integer and Long to be used in 

   368 {@code evaluateExpression} method such as the following code: 

   367 {@code evaluateExpression} method such as the following code: 

   370 <blockquote>

   368 <blockquote>

   371 <pre>

   369 <pre>

   372 int count = xpath.evaluate("count(/widgets/widget)", document, Integer.class);

   370 int count = xpath.evaluate("count(/widgets/widget)", document, Integer.class);

   373 </pre>

   371 </pre>

   374 </blockquote>

   372 </blockquote>