Chapter 25, Problem 11RE

Explanation of Solution

XPath:

The easiest way to inspect the XML document is by using the XPath syntax.

• In the DOM standard, a node is a common superclass for all the components that is present in the XML document.
• To be precise, nodes are elements and text sequences.
• XPath describes a node or set of nodes, the syntax of XPath is similar to that of directory paths.

Example:

/items/item[1]/quantity

 The above XPath selects the quantity of the first item.

 Result of evaluating the following XPath expressions:

 a. Expression to get the value of the first coin

 The XPath expression that is used to get the value of the first coin is “/purse/coin[1]/value”

 B Number of coins:

 The XPath expression that is used to get the number of coins is “count(/purse/coin)”...