Tag Archives: Java

Contribute to NetBeans (and other projects)

You may support open source projects by contributing comments, bug reports, wish lists or code etc. For the current release of NetBeans, I only reported some bugs. This is a partial result of these contributions:      

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JSF, mark required fields

Don’t you know this: You have an application using some dialogs and each dialog contains some required fields and some, whiche are not mandatory. To disinguish these two kinds of fields, the required fields should be marked, e.g. with an … Continue reading

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Tutorial web development (with JSF) VI: Templates

Templates In the last part of this series, we created a second page, which looked similar to the first one. Now, we will put the common parts into a central place. To do this, we’ll create a template, which acts … Continue reading

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JPA and legacy database

Suppose, you have to store orders in a SQL DBMS. An order consists of header (address, date, number etc.) as well as a variable count oflines (amount, product, price, tax, …). This should be stored in two tables. Table Order … Continue reading

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Tutorial web development (with JSF) V: Scene change

Scene change The tiny calculator is now functional. After entering the two parameters ans clicking on one of the buttons for the basic arthimetics, you’ll get the result just below the buttons. This is well designed since the usuer usually … Continue reading

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