Sort by binary ones in Java
The challenge
In this example you need to implement a function that sort a list of integers based on it’s binary representation.
The rules are …
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342 articles about java development, tools, and best practices
Binomial Expansion in Java
The challenge
Write a program that can do some algebra. Write a function expand that takes in an expression with a single, one character variable, and …
Consecutive strings in Java
The challenge
You are given an array(list) strarr of strings and an integer k. Your task is to return the first longest string consisting of k …
Determine the Highest Scoring Word in Java
The challenge
Given a string of words, you need to find the highest scoring word.
Each letter of a word scores points according to its position in the …
Read Article →Solving Speed Control in Java
The challenge
In John’s car the GPS records every s seconds the distance travelled from an origin (distances are measured in an arbitrary but …
Calculate Miles per Gallon to Kilometers per Litre in Java
The challenge
Create an application that will display the number of kilometers per liter (output) based on the number of miles per imperial gallon …
Read Article →Find the Greatest Common Divisor in Java
The challenge
Find the greatest common divisor of two positive integers. The integers can be large, so you need to find a clever solution.
The inputs …
Read Article →How to Guess the Sequence in Java
The challenge
You must guess a sequence and it has something to do with the number given.
Example
x = 16
result = [1, 10, 11, 12, 13, 14, 15, 16, 2, …Reversed sequence in Java
The challenge
Build a function that returns an array of integers from n to 1 where n>0.
Example : n=5 –> [5,4,3,2,1]
The solution in Java code …
Read Article →Count the Digit in Java
The challenge
Take an integer n (n >= 0) and a digit d (0 <= d <= 9) as an integer. Square all numbers k (0 <= k <= n) between 0 and n. …
Multiply all elements in an array in Java
The challenge
Create a function multiplyAll/multiply_all which takes an array of integers as an argument. This function must return another function, …
Credit Card Mask in Java
The challenge
Usually when you buy something, you’re asked whether your credit card number, phone number or answer to your most secret question …
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