Monthly Archives: April 2007


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Java is a very powerful object oriented language. If you search for recursion in wikipedia you will find this definition “Recursion, in mathematics and computer science, is a method of defining functions in which the function being defined is applied within its own definition.” This means, that the function will call itself again and again until it gets the correct answer. There are many pages where you can find great explanations to recursion theory. Most of them use the example of the Towers of Hanoi: Cut The Knot –Towers of Hanoi– Recursion –Towers of Hanoi– Java Recursion with examples What […]

Java recursive functions explained // Using recursion to sum an ...


JTable inside JTable cell 11
Java is one of the greatest object oriented languages. This can easily be seen when using swing components. JTables are a great example. Briefly, jTables are just a base to display a matrix of JComponents. So inside a JTable you can embed any object which extends the JComponent class. Today I’ll show you an easy way to display a JTable inside another jTable as a cellRenderer. If you’ve ever worked with multivalued data models this can be of great help. In this simple example I’ll create a small contact manager where the name, phones, and e-mail addresses of the contact […]

Displaying a jTable inside another jTable // JTable cellRenderer