Java 8 introduced the Stream API, which allows you to perform functional-style operations on collections of data. Here are some examples of using the Stream API: 1. Filtering a list…
We can implement a custom class that behaves like an array by creating a class that has an array as a private field, and implements the necessary methods to access…
What is the difference between an interface and an abstract class in Java? In Java, an interface and an abstract class are both used to define a contract for classes…
In Java, a String is an immutable object that represents a sequence of characters. It means once a String is created, its value cannot be changed, any operation that appears…
In Java 8, streams use a technique called “lazy evaluation” to process data. Lazy evaluation means that a stream operation is not executed until it is absolutely necessary. This can…
1. Grouping a list of articles by their category and then sorting them by their title: 2. Finding the most frequent element in a list of log entries: 3. Summing…
In this tutorial, we will learn ThreadPool Example. Lets say, Application needs to send 1000 of email as part of nightly job. In this case, Thread Thread is a Simple…
Questions1: Given: public class Triangle { static double area; int b = 2, h = 3; public static void main(String[] args) { double p, b, h; // line1 if (area…
1. Assume you have two instances of Student Object. Which is following array declaration is correct ? Student students(student1, student2}); Student [] students(student1,student2); Student students = [student1,student2]; Student [] students…
