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.
Anagrams string checker in Java
Carvia Tech | July 24, 2020 | 2 min read | 1,061 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
Carvia Tech | July 24, 2020 | 2 min read | 597 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 ArticleFactorial in Java using recursion
Carvia Tech | July 24, 2020 | 2 min read | 191 views | Java Coding Challenges
We will use recursion to calculate factorial of a number in Java along with a Java 8 stream approach
Read ArticlePalindrome checker in Java
Carvia Tech | July 24, 2020 | 2 min read | 1,039 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 Articlepangram checker in java
Carvia Tech | December 26, 2019 | 2 min read | 2,405 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 ArticleCheck a number is Prime: Java Coding Problem
Carvia Tech | October 30, 2019 | 3 min read | 488 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
Carvia Tech | September 09, 2019 | 2 min read | 365 views | Java Coding Challenges
In this article we will write java code to check if the given input string is palindrome or not.
Read ArticleHow to reverse a number in Java
Carvia Tech | September 07, 2019 | 1 min read | 874 views | Java Coding Challenges
This is a common SDET interview questions where interviewer asks for reversing a number using any language.
Read ArticleGiven a collection of 1 million integers, All ranging between 1 to 9, how would you sort them in Big O(n) time
Carvia Tech | August 03, 2019 | 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 ArticleFind two numbers of which the product is maximum in an array
Carvia Tech | May 27, 2019 | 1 min read | 582 views | Java Coding Challenges
We can easily find two number in an array whose product is maximum by sorting the input integer array in descending order first and then multiplying the first two numbers.
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