To remove all the elements from the CopyOnWriteArrayList, use the clear() method. It empties the list.The syntax is as follows:void clear()To work with CopyOnWriteArrayList class, you need to import the following package:import java.util.concurrent.CopyOnWriteArrayList;The following is an example to implement CopyOnWriteArrayList class clear() method in Java:Example Live Demoimport java.util.concurrent.CopyOnWriteArrayList; public class Demo ... Read More

The time stamp dataType in MySQL database stores day, month, year, hour, minute, second, fractional seconds. Using this you can represent date and time at once.There are two ways to insert/get current time stamp values while working with JDBC.Using the database default value for a date.Using the getTime() method of ... Read More

The range() method of the LongStream class in Java returns a sequential ordered LongStream from startInclusive to endExclusive by an incremental step of 1. This is inclusive of the initial element and exclusive of the last element.The syntax is as follows:static LongStream range(long startInclusive, long endExclusive)Here, startInclusive is the first ... Read More

This sorting technique is similar with the card sorting technique, in other words we sort cards using insertion sort mechanism. For this technique, we pick up one element from the data set and shift the data elements to make a place to insert back the picked up element into the ... Read More

The shell sorting technique is based on the insertion sort. In the insertion sort sometimes we need to shift large block to insert item in the correct location. Using shell sort, we can avoid large number of shifting. The sorting is done with specific interval. After each pass the interval ... Read More

The nanosecond of second for a particular LocalTime can be obtained using the getNano() method in the LocalTime class in Java. This method requires no parameters and it returns the nanosecond of second in the range of 0 to 999, 999, 999.A program that demonstrates this is given as followsExample Live ... Read More

Counting sort is a stable sorting technique, which is used to sort objects according the keys that are small numbers. It counts the number of keys whose key values are same. This sorting technique is efficient when difference between different keys are not so big, otherwise it can increase the ... Read More

Grouping related SQL statements into a batch and executing/submitting them at once is known as batch processing.While executing a set of statements one after other the execution switches from the database to program simultaneously.Using batch processing we can reduce this communication overhead and increase the performance of our Java application.For ... Read More

For the binary search technique, the lists are divided into equal parts. For the interpolation searching technique, the procedure will try to locate the exact position using interpolation formula. After finding the estimated location, it can separate the list using that location. As it tries to find exact location every ... Read More

Grouping related SQL statements into a batch and executing/submitting them at once is known as batch processing. The Statement interface provides methods to perform batch processing such as addBatch(), executeBatch(), clearBatch().Follow the steps given below to perform batch updates using the Statement object:Register the driver class using the registerDriver() method ... Read More