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Introduction The java.util.zip.CheckedOutputStream class is an output stream that also maintains a checksum of the data being written. The checksum can then be used to verify the integrity of the output data. Class Declaration Following is the declaration for java.util.zip.CheckedOutputStream class − Learn Java in-depth with real-world projects through our Java certification course. Enroll and become a certified expert to boost your […]
Introduction The java.util.zip.CheckedInputStream class is an input stream that also maintains a checksum of the data being read. The checksum can then be used to verify the integrity of the input data. Class Declaration Following is the declaration for java.util.zip.CheckedInputStream class − Learn Java in-depth with real-world projects through our Java certification course. Enroll and become a certified expert to boost your […]
Introduction The java.util.zip.Adler32 class is a class that can be used to compute the Adler-32 checksum of a data stream. An Adler-32 checksum is almost as reliable as a CRC-32 but can be computed much faster. Class Declaration Following is the declaration for java.util.zip.Adler32 class − Learn Java in-depth with real-world projects through our Java certification course. Enroll and become a certified […]
Java DOM4J API provides methods to modify XML documents. We might come across situations where we need to update few details in a large XML document. For example, an e-commerce website has many products whose price may vary on a daily or monthly basis. In such cases, modifying the already existing file makes the job […]
Java DOM4J library has classes, interfaces and methods to create XML documents. The interfaces Document and Element of org.dom4j package has methods to create XML documents. The XMLWriter class of org.dom4j.io package writes the XML content of the document into the file. In this chapter we are going to use these interfaces and classes to […]
Java DOM4J parser is an open source Java library to parse and query the necessary information from XML documents. We can query XML documents using the methods of Document and Element interfaces of DOM4J. The elements() method retrieves all the elements of root element. Using attributeValue() method, we can query the attributes of elements. Query […]
Java DOM4J parser is an API in Java to parse XML documents. It creates DOM4J document from a built-in SAX parser or a DOM parser. After getting the document, we can retrieve the information of elements and attributes using the built-in methods of DOM4J Document and Element interfaces. In this chapter, we have used getRootElement() […]
DOM4J is an open source, Java-based library to parse XML documents. It is a highly flexible and memory-efficient API. It is Java-optimized and uses Java collections like List and Arrays. DOM4J works with DOM, SAX, XPath, and XSLT. It can parse large XML documents with very low memory footprint. Environment Setup In order to use […]
XPath parser is used to navigate XML Documents only. It is better to use DOM parser for modifying XML. Please refer the Java DOM Parser section for the same.
XPath parser is used to navigate XML Documents only. It is better to use DOM parser for creating XML. Please refer the Java DOM Parser section for the same.