Ans :- the main difference between Collection and Collections :- 1.Collection<E> 2.Collections 1.Collection<E>  => Collection <E> is an interface from java.util package and which is the root of Java Collection<E> Framework. 2.Collections : => “Collections” is a Class from java.util …

What is the Difference between Collection and Collections ? Read more »

Solution :- import java.util.ArrayList; import java.util.Arrays; import java.util.List; import java.util.stream.Collectors; public class DuplicateElement { public static void main(String[] args) { List<Integer> list=Arrays.asList(1,1,2,3,3,3,5); list=list.stream().distinct().collect(Collectors.toList()); System.out.println(list); } } *****************************************************

@Controller :- @Controller is a spring MVC annotation to define a controller ,but in reality it’s just a Stereotype annotation. => You can even create a controller without @Controller by annotating the Spring MVC Classes using @Component annotation. The real …

What is the @Controller annotation used for? How can you create a controller without an annotation? Read more »

In today’s fast-paced digital world, having a mobile app for your website is crucial for reaching a wider audience and enhancing user engagement. However, the process of creating an app can be perceived as a complex and expensive endeavor, especially …

Transform Your Website into an App in Minutes with AppGenerater: A No-Code Solution Read more »

The Java ExecutorService is an interface which is present inside java.util.concurrent package. The ExecutorService interface is a subinterface of the Executor interface. It allows us to execute tasks asynchronously on threads. It allows us to submit tasks for execution. With …

ExecutorService in Java Read more »