In Java 8, the Stream.reduce() and Stream.collect() methods are used for performing reduction operations, but they are intended for different […] Continue reading »
HashMap and Hashtable are both key-value data structures in Java, but they differ in synchronization, null handling, and performance. In […] Continue reading »
In Java, both Runnable and Callable are interfaces used to define tasks that can be executed by threads or executors. […] Continue reading »
In Oracle SQL, both RANK() and DENSE_RANK() are window functions that are used to assign a ranking to each row […] Continue reading »
In Java, both Arrays.copyOf() and System.arraycopy() are methods used to copy elements from one array to another. But, they are […] Continue reading »
Java 8 introduced several functional interfaces in the java.util.function package to support functional programming paradigms. Among these interfaces, Consumer and […] Continue reading »
Java 8 introduced several new features to enhance the language’s functional programming capabilities. Among these features are Predicates and Functions, […] Continue reading »
ArrayList and Vector are two commonly used classes in Java that provide dynamic arrays. They are similar in many ways […] Continue reading »
In Java 8, we can use Period.between(startDate, endDate) method to find out the difference between two LocalDate instances. Period is […] Continue reading »
In Java 8, we can use LocalDateTime.now(ZoneId.of(String zoneId)) to get current LocalDateTime instance of the zoneId and Duration to calculate […] Continue reading »
In this short article, we’ll learn how to calculate the difference between two dates in Java 8. We can use […] Continue reading »