Adobe Dreamweaver CS3: Webseiten entwickeln mit (X)HTML, by Richard Beer

By Richard Beer

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Grundkurs Algorithmen und Datenstrukturen: Eine Einführung in die praktische Informatik mit Java

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Extra info for Adobe Dreamweaver CS3: Webseiten entwickeln mit (X)HTML, Ajax, CSS, PHP und MySQL

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Formatter class, which can be used to easily format text. The Formatter class works very similar to the printf function in the C language, and provides support for layout justification and alignment, common formats for numeric, string, and date/time data, and locale-specific output. 1416 49 50 In this example, we create a Formatter instance and use it to format the value of the standard mathematical value PI. The value of PI contains an infinite amount of decimal places, but you typically want to restrict it to a small number of decimal places when printing it.

Calling the format() method of the SimpleDateFormat object will return a string that contains the formatted representation of the Date that is passed into the method as a parameter. The output of the phrase shown will be the following: 30 31 Today's Date and Time is: Mon, 27 Feb 2006 11:18:33 The formatting string passed to the SimpleDateFormat constructor can be a bit cryptic to read if you don't know the formatting codes to use. 1 shows the formatting codes that can be passed into the SimpleDateFormat constructor.

Random() and multiply by the range. random())*15; The Random class and the random() method of the Math class will actually give you a pseudorandom number, not a true random number. This means that the random number is generated using a mathematical formula and an input seed value. Given the seed value and knowledge of the inner workings of the Random class, it would be possible to predict these random values. Therefore, these classes are probably not the best solution for a random number generator for use in high security applications.

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