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Stream : mapToInt method mapToInt method is introduced in stream and its designed to transform a stream of object into intStream. What is intStream ? IntStream is specialized stream that deals with primitve int value which can be more efficient than regular Stream<Integer> Key Points : 1.What is purpose mapTOInt method ? mapToInt is used…
In this tutorial we are going to learn how to use flatmap. 1. Basic FlatMap Example: Explanation: nestedList is a list of lists. flatMap is used to flatten the nested structure into a single stream of strings. The resulting flatList contains all individual strings from the nested lists. 2. FlatMap with Arrays: Explanation: Stream.of creates…
Basic Example: () -> System.out.println(“Hello, Lambda!”); Lambda expression with no parameters, printing a message. Single Parameter: (x) -> x * x; Lambda with a single parameter, returning the square. Multiple Parameters: (a, b) -> a + b; Lambda with multiple parameters, returning their sum. Functional Interface: Comparator<String> comparator = (s1, s2) -> s1.compareTo(s2); Lambda for…
Stream: Remove duplicates from List In this Java code snippet, we’re dealing with a list of integers: 1, 2, 2, 3, 4, 4, and 5. Using streams, we’re filtering out duplicate values, resulting in a list of distinct numbers. The `distinct` operation ensures that each value appears only once in the resulting list. The code…
Binary Conversion in Java: A Comprehensive Guide Binary conversion is a fundamental concept in computer science, essential for understanding how computers process and store data. In this article, we’ll take a deep dive into the Java code snippet provided and explain each element in detail. By the end of this article, you’ll have a clear…
Writing Various Forms of Lambda Expressions in Java Lambda expressions have brought a breath of fresh air to Java programming, allowing developers to write more concise and expressive code. In this article, we’ll delve into the world of lambda expressions, exploring different forms and how they can be used to enhance your Java applications. Introduction…
Java 8 Lambda Expressions Interview Questions with Answers: Mastering the Basics Are you preparing for a Java programming interview? If so, you’re likely to encounter questions about Java 8 lambda expressions. Lambda expressions have revolutionized the way we write code in Java, making it more concise and expressive. In this article, we’ll explore some common…
Unraveling the Logic Behind the Java ‘twoSum’ Method for Solving the Two-Sum Problem In the world of programming, problem-solving is an art form that often requires creative thinking and the application of ingenious algorithms. One such classic problem is the “Two-Sum Problem,” which involves finding a pair of numbers in an array that adds up…
Are you ready to take your programming skills to the next level? Look no further! JavaGuidance is here to guide you through the intricate world of Java and Spring Framework, empowering you to create powerful and efficient applications that will revolutionize the way you do business. Java, the versatile and widely-used programming language, is at…
