Java Coding Challenges
Java coding problem
Find two numbers of which the product is maximum in an array
Carvia Tech | May 27, 2019 | 1 min read | 8 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.
Read ArticleCheck a number is Prime: Java Coding Problem
Carvia Tech | May 24, 2019 | 3 min read | 16 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 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 | May 19, 2019 | 2 min read | 209 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 ArticleCreate anagram buckets from a given input array of words
Carvia Tech | May 18, 2019 | 2 min read | 13 views | Java Coding Challenges
Here we get an input array of words that contains anagram string, and we need to create buckets for all the anagrams words.
Read ArticleJava program to check if two strings are anagrams
Carvia Tech | May 18, 2019 | 2 min read | 20 views | Java Coding Challenges
Two strings are called anagrams if they contain same set of characters but in different order. In this coding problem, we will evaluate anagrams using a Java Program.
Read ArticleWrite a program to reverse a string using recursion in Java
Carvia Tech | May 18, 2019 | 1 min read | 19 views | Java Coding Challenges
In this article, we will write a program to reverse a string entered by a user.
Read ArticleCheck if the given number is Armstrong Number in Java
Carvia Tech | May 18, 2019 | 2 min read | 19 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 ArticleCalculate factorial of a number in Java using recursion
Carvia Tech | May 18, 2019 | 1 min read | 11 views | Java Coding Challenges
the factorial of a number is calculated by formula `number * (number -1)` till zero and since the value of factorial zero is 1, it acts as a base case in the recursive version of the factorial method.
Read ArticleHow to check if the given number is palindrome in Java
Carvia Tech | May 18, 2019 | 2 min read | 33 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 ArticleHow will you check if a given sentence is a pangram
Carvia Tech | May 18, 2019 | 2 min read | 32 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
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