The abstract keyword is used in Java for abstraction. The abstraction is the process of selecting data and displaying only the relevant details to the object. If helps to reduce the programing complexity and the efort.

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Keywords are special words in the programing language which have reserved use in the language. Keywords may not be used as identifiers in Java; for example you cannot declare a field whose name is a keyword.

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How to read XML file in Java using SAX Parser.

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How to split a string in Java using both variants of the split() method: split(String regex) and split(String regex, int limit).

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How to generate JAXB classes with xjc. Command line: xjc -d src -p com.admfactory.client schema.xsd

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How to convert a roman number in decimal in Java. The symbols used are I, V, X, C, D and M.

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