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A connection represents a link from a Java application to a database. All SQL
statements and results
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An iterator over a sequence of objects, such as a collection.If a collection has
been changed since
- TreeMap (java.util)
Walk the nodes of the tree left-to-right or right-to-left. Note that in
descending iterations, next
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- StringUtils (org.apache.commons.lang)
Operations on java.lang.String that arenull safe.
* IsEmpty/IsBlank - checks if a String contains
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