Kynea Numbers in Java

Java 9 Interface Private Methods

Java 9 Private Interface Methods In Java 9, we can create private methods inside an interface. Interface allows us to declare private methods that help to share common code between non-abstract methods. Before Java 9, creating private methods inside an interface cause a compile time error. The following...

1 min read

Future in Java 8

In Java, the Callable interface was introduced in Java 5 as an alternative to existing Runnable interface. It wraps a task and pass it to a Thread or thread pool for asynchronous execution. The Callable represents an asynchronous computation, whose value is available through a Future...

4 min read

Complex Java Programs

To know more and in-depth about a programming language, one should practice the specific programming language programs. Working with programs will make you learn and understand the programming language better and will never forget the concepts when implemented practically. Especially if you are a beginner, then...

8 min read

Two Types of Streams Offered by Java

In Java, the streams are majorly utilized for providing and offering several programming paradigms that are used for data processing and in an expensive and concise manner. Java contains two major stream types and they are Intermediate Streams and Terminal Streams. Let's understand about both Intermediate Stream and...

7 min read

Final Method Overloading in Java| Can We Overload Final Methods

? Java, being an object-oriented programming language, provides a powerful mechanism known as method overloading, allowing developers to define multiple methods with the same name but different parameters within the same class. However, when it comes to final methods, a question arises: can we overload final methods...

6 min read

Difference Between Collection.stream().forEach() and Collection.forEach() in Java

Collection.forEach() and Collection.stream().forEach() are both used for iterating across the collections and are not significantly different from one another. There is no major difference between the two, as both of them provide the same result. However, there are some. Collection.stream().forEach() Method Iteration in a group of objects...

4 min read

Check if One String Swap Can Make Strings Equal in Java

Two strings, str1 and str2, of the same length are given to us. Selecting two indices in a string, which need not be distinct, and switching the characters at these indices is known as a string swap. If, at most, one string swap can be done...

4 min read

Abstract Method in Java

In object-oriented programming, abstraction is defined as hiding the unnecessary details (implementation) from the user and focusing on essential information (functionality). It increases the efficiency and reduces complexity. In Java, abstraction can be achieved using abstract classes and methods. Abstract Method In Java, an abstract method is...

5 min read

String Literal Vs String Object in Java

The Java.lang.String or String class, which is a notable class in API. With its several unique features that are not immediately apparent to many programmers, the String class is unique in the Java API. Understanding the String class is a prerequisite for learning Java. It...

4 min read

3N+1 Problem in Java

The 3N+1 problem is an abstract mathematical problem that is a conjecture (not yet proven). It is also known as Collatz problem. In this section, we will discuss the 3N+1 problem along with its Java program. The task is to write a Java program that will read...

3 min read