Java Coding Challenges
Java coding challenges - find palindrome number, sort 1 million integers in Big O(1) time, check number is prime, anagram buckets, reverse a string, check Armstrong number, check factorial of a number, pangram sentence.
Given a collection of 1 million integers, all ranging between 1 to 9, sort them in Big O(n) time
Upasana | November 22, 2020 | 2 min read | 669 views | Java Coding Challenges
This is a typical Integer Sorting problem with a constraint that the number range to sort is very limited in spite 1 million total entries. Integer Sorting with limited range is achieved efficiently with Bucket Sorting.
Read ArticleReverse a string using recursion in Java
Upasana | November 21, 2020 | 1 min read | 105 views | Java Coding Challenges
In this article, we will write a program to reverse character positions in a given string using recursive approach.
Read ArticleReverse position of words in a string using recursion
Upasana | November 20, 2020 | | 83 views | Java Coding Challenges
In this article, we will write a program to reverse position of words in a given string using recursive approach.
Read ArticleJava Program to find Factorial of a number
Upasana | October 17, 2020 | 2 min read | 382 views | Java Coding Challenges
Discussion on different approaches to calculate factorial of a given number - recursion, iterative approach and Java 8 stream approach
Read ArticlePangram checker in java
Upasana | September 12, 2020 | 2 min read | 3,206 views | Java Coding Challenges
A pangram is a sentence containing every letter in the English Alphabet (a-z). Pangram example: The quick brown fox jumps over the lazy dog
Read ArticleAnagrams string checker in Java
Upasana | July 24, 2020 | 2 min read | 1,334 views | Java Coding Challenges
Two strings are called anagrams if they contain same set of characters but in different order. Here we will evaluate anagrams using a Java Program
Read ArticleArmstrong Number in Java
Upasana | July 24, 2020 | 2 min read | 794 views | Java Coding Challenges
In an Armstrong number (also known as _narcissistic number_), is a number that is the sum of its own digits each raised to the power of the number of digits
Read ArticlePalindrome checker in Java
Upasana | July 24, 2020 | 2 min read | 1,394 views | Java Coding Challenges
A palindrome is a word, number, or other sequence of characters which reads the same backward as forward, such as madam, racecar or 454.
Read ArticleCheck a number is Prime: Java Coding Problem
Upasana | October 30, 2019 | 3 min read | 629 views | Java Coding Challenges
In this article we will learn if a given number is prime or not. The solution presented here may not be best optimized, but it should be sufficient from interview point of view.
Read ArticleCheck if the given string is palindrome
Upasana | September 09, 2019 | 2 min read | 575 views | Java Coding Challenges
In this article we will write java code to check if the given input string is palindrome or not.
Read ArticlePopular Tags
Trending Posts
- Machine Learning based Multiple choice questions
- Difference between getOne and findById in Spring Data JPA?
- Rest Assured API Testing Interview Questions
- python problem 1: find the runner-up score
- Run method on Spring Boot startup
- Feign exception handling in Spring Cloud
- Disable SSL validation in Spring RestTemplate
- Citibank Java developer interview questions
- MD5 and SHA256 in Java Kotlin and Android
- Sapient Global Market Java Interview Questions and Coding Exercise