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Nancy Den has Published 330 Articles
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Nancy Den
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The iterator() method of the LongStream class in Java returns an iterator for the elements of this stream.The syntax is as follows.PrimitiveIterator.OfLong iterator()Here, PrimitiveIterator is an Iterator specialized for long values.To use the LongStream class in Java, import the following package.import java.util.stream.LongStream;The following is an example to implement LongStream iterator() ... Read More
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Nancy Den
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Beside its advantages, ODBC has several drawbacks. Following are the main drawbacks of ODBC.Keeps on changing: ODBC is provided by Microsoft and like other Microsoft products it keeps evolving and the companies using ODBC should keep up with it. In addition to this, you need to pay to use ODBC ... Read More
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Nancy Den
683 Views
Grouping a set of INSERT or, UPDATE or, DELETE commands (those produce update count value) and execute them at once this mechanism is known as a batch update.If you pass quires with parameters using batch update it is known as a parameterized batch update.Generally, to perform batch updates you need ... Read More
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Nancy Den
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You can retrieve the contents of a table as a ResultSet and, insert a new row to it directly. To do so, first of all, you need to make sure your ResultSet is updatable.The moveToInsertRow() method of the ResultSet interface navigates the cursor to the position where you need to ... Read More
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Nancy Den
363 Views
JDBC stands for Java Database Connectivity. It is a Java library/specification released by sun microsystems. It enables Java applications to communicate with databases.A JDBC driver is an implementation of the above-mentioned specification i.e. it contains the classes and interfaces to communicate with the database. Using JDBC driver and JDBC API ... Read More
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Nancy Den
175 Views
To create a KeyValue tuple in Java, you can use the with() method, collection or simply the constructor. Here, we will see how to create a KeyValue tuple using a constructor. Let us first see what we need towork with JavaTuples. To work with KeyValue class in JavaTuples, you need ... Read More
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Nancy Den
403 Views
The parallel() method of the IntStream class in Java returns an equivalent parallel stream. The method may return itself, either because the stream was already parallel, or because the underlying stream state was modified to be parallel.The syntax is as follows:IntStream parallel()Create an IntStream and you can use the range() ... Read More
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Nancy Den
91 Views
The parallel() method of the LongStream class in Java returns an equivalent stream that is parallel.The syntax is as follows:LongStream parallel()To use the LongStream class in Java, import the following packageExample Live Demoimport java.util.stream.LongStream;The following is an example to implement LongStream parallel() method in Java:import java.util.stream.LongStream; public class Demo { ... Read More
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Nancy Den
100 Views
The mapToDouble() method returns a DoubleStream consisting of the results of applying the given function to the elements of this stream.The syntax is as follows:DoubleStream mapToDouble(LongToDoubleFunction mapper)The parameter mapper is a stateless function to apply to each element.To use the LongStream class in Java, import the following package:import java.util.stream.LongStream;The following ... Read More