Sort array by sorting its smallest sub-array in Java
The challenge
Given an array of integers, arr, find out 2 indices m, n(0<=m<=arr.length-1, 0<=n<=arr.length-1, m<=n), so that as long …
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342 articles about java development, tools, and best practices
Excessively Abundant Numbers in Java
The challenge
An abundant number or excessive number is a number for which the sum of its proper divisors is greater than the number itself.
The …
Read Article →Unique Substring From Joined Strings in Java
The challenge
Write a function that takes two strings, A and B, and returns the length of the longest possible substring that can be formed from the …
Read Article →Converting from Base 10 to 16 (Decimal to Hex) in Java
The challenge
Convert an integer which is base 10, to a hexadecimal base 16 string.
Java provides various built-in options such as Integer.toString(a, …
String polynomial converter in Java
The challenge
Your task is to programe:
String convertToString(int[] pol) {....} The method returns given by a parameter, (integer array) which …
How to Remove all Exclamation Marks from a String in Java
The challenge
Write function RemoveExclamationMarks which removes all exclamation marks from a given string.
The solution in Java code
Option 1:
class …How to Convert a Number to a String in Java
The challenge
We need a function that can transform a number into a string.
What ways of achieving this do you know?
Examples: …
Read Article →How to Remove Spaces in a String in Java
The challenge
Simple, remove the spaces from the string, then return the resultant string.
The solution in Java code
class Solution {
static …How many stairs will Suzuki climb in 20 years? in Java
The challenge
Suzuki is a monk who climbs a large staircase to the monastery as part of a ritual. Some days he climbs more stairs than others …
Read Article →Determine if N is divisible by X and Y in Java
The challenge
Create a function that checks if a number n is divisible by two numbers x AND y. All inputs are positive, non-zero digits.
Examples
1) n …How to Sum a Mixed Array in Java
The challenge
Given an array of integers as strings and numbers, return the sum of the array values as if all were numbers.
Return your answer as a …
Read Article →Calculate the Volume of a Cuboid in Java
A Cuboid is a geometric object that is more or less cubic in shape. It is a solid which has six rectangular faces at right angles to each other.
The …
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