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Java Coding Practice

Welcome to Java Coding Practice. Java is one of the most popular programming languages, especially for backend development and enterprise applications. Practicing Java can help you excel in coding interviews and build a solid foundation for your career.

Coding Questions Filter

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Check if Array is Sorted

Easy Arrays, Sorting Algorithms
Solve Challenge

Binary Array Sorting

Easy Arrays, Sorting Algorithms
Solve Challenge

Case-Insensitive Stable Sort

Easy Sorting Algorithms
Solve Challenge

Sort Log Files

Easy Sorting Algorithms
Solve Challenge

Sort by Vowel Count

Easy Sorting Algorithms
Solve Challenge

Sort by Bit Count

Medium Sorting Algorithms
Solve Challenge

Maximum Flight Time Scheduler

Hard Sorting Algorithms
Solve Challenge

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What You'll Find Here

Real-World Problems Solve problems designed to simulate workplace challenges.

Comprehensive Solutions Gain a deep understanding of Java concepts through detailed explanations.

Industry-Ready Skills Prepare for top tech roles with targeted exercises.

Choose from the following Java categories

Strings A sequence of characters used to represent text, with problems focused on manipulation, searching, and pattern matching.

Arrays A collection of elements stored in contiguous memory locations, allowing efficient random access and manipulation.

Linked Lists A linear data structure where each element (node) points to the next, offering dynamic memory allocation and efficient insertions/deletions.

Trees A hierarchical data structure with nodes connected by edges, used in applications like databases, file systems, and parsing.

Graphs A collection of nodes (vertices) connected by edges, representing relationships, widely used in networking, routing, and social networks.

Dynamic Programming An optimization technique that solves problems by breaking them into overlapping subproblems and storing their results.

Backtracking A problem-solving method that explores all possibilities recursively, backtracking when a solution is not feasible.

Sorting Algorithms Techniques for arranging elements in a specific order, such as quicksort, mergesort, and bubble sort, essential for data organization.

Searching Algorithms Methods for finding elements in a dataset, such as binary search, linear search, and graph traversal techniques.

Mathematics A field of study involving numbers, calculations, and logical reasoning, forming the foundation for algorithms and problem-solving.

Recursion A programming technique where a function calls itself to solve smaller instances of the same problem, often used in divide-and-conquer approaches.

Bit Manipulation Operations performed directly on binary representations of data, used for efficient computations and optimization tasks.