Java Tutorials - Improve your understanding of Java and JSP Languages

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Class of the Month: JDK 1.4 Supports Regular Expressions Regular expressions are a useful programming tool. The fact that Java now natively supports them simplifies many programming tasks that used to require cumbersome code...

Conditionals Conditionals are very important in programming. I'll give you an example. Under one condition, you want to add something to a number. Under another condition, you want to subtract...

Data Persistence and Java Data Objects - JDO Learn about Java Data Objects (JDO) and how they make enterprise-level Web database development easier... .earthweb

Data Structures in Java: Part 5, The Core Collection Interfaces The Java Collections Framework defines six core interfaces, in two distinct trees. Learn the inheritance structure and the purpose of those interfaces...

Data Structures in Java: Part 6, Duplicate Elements, Ordered Collections, and More A Set object cannot contain duplicate elements, but a List object can contain duplicate elements. Ordered collections are not the same as sorted collections...

Data Structures in Java: Part 7, The Comparable Interface, Part 1 Baldwin explains the (lack of) interaction between the Comparable interface and the Java Collections Framework with respect to collections of type List...

Data Structures in Java: Part 8, The Comparable Interface, Part 2 Baldwin shows you why the elements stored in a TreeSet collection need to be references to objects instantiated from a class that implements the Comparable interface, and briefly discusses an alternative approach using the Comparator interface...

Data Structures in Java: Part 9, The Comparator Interface, Part 1 Baldwin discusses and illustrates the use of the Comparator interface. The sorting order established by a Comparator may be different or may be the same as the natural order. A Comparator can be used to establish a sorting order for objects that don't hav...