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We are using Enhanced for loop to retrieve the List object elements one by one.

Enhanced for loop uses Iterator object internally and do the same thing like External Iterator example.

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These options aren’t guaranteed to be supported by all JVM implementations and are subject to change. For options that require an argument, the argument may be separated from the option name by a space, a colon (:), or an equal sign (=), or the argument may directly follow the option (the exact syntax differs for each option).If you’re expected to specify the size in bytes, then you can use no suffix, or use the suffix isn’t set, then the user class path consists of the current directory (.).Do this process to reach the Iterator’s Cursor to the end element of the List.After reading the final element, if we run the below code snippet, it returns “false” value.These are developer options used for tuning specific areas of the Java Hot Spot Virtual Machine operation that often have specific system requirements and may require privileged access to system configuration parameters.

Several examples of performance tuning are provided in Performance Tuning Examples.As Iterator’s Cursor points to the after the final element of the List, has Next() method returns false value.After observing all these diagrams, we can say that Java Iterator supports only Forward Direction Iteration as shown in the below diagram. Compare to Enumeration interface, Java Iterator has the following advantages or benefits.In Java, Iterator is an interface available in Collection framework in package.It is a Java Cursor used to iterate a collection of objects.In this section, we will discuss about how to provide similar kind of functionality for a User-Defined or Custom classes.