Programmr's Coding Challenges
Sharpen your coding skills in the most entertaining way by solving Programmr's coding challenges!
Don't forget to challenge your friends too!
Java
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Palindrome String419votes -
Is Binary or not362votes -
number to string format320votes -
Convert to uppercase309votes -
Matrix Multiplication290votes -
Quadrant of an Angle279votes -
Print Rectangle268votes -
Name search267votes -
Sum of the digits265votes -
Statement reverse263votes -
Decimal to Octal Conversion262votes -
Pascal Triangle249votes -
String Sort245votes -
Count Ones241votes -
Sum of Naturals divisible by 3 and 5240votes -
Number Occurrence in Array240votes -
Leap Year check239votes -
Average of positive and negative numbers239votes -
Reverse Array232votes -
Flow Control231votes -
Last Samples of a number230votes -
Compare Numbers227votes -
Word Reverse227votes -
Convert in Seconds226votes -
triangular star226votes -
Sexy Pairs225votes -
Transpose of Matrix223votes -
Wind Chill222votes -
Operators222votes -
Number of occurence220votes -
date sort219votes -
Fibonacci Series213votes -
sum of column of a matrix212votes -
Diamond Shape209votes -
Factorial of a given number208votes -
Armstrong Number205votes -
Capitalization203votes -
Arrays and Collections203votes -
Amicable Total202votes -
Cartesian to Polar co-ordinates202votes -
print even numbers using forloop200votes -
Spring month check199votes -
Nested for loops199votes -
Decimal to binary covertor199votes -
ISBN Validation199votes -
Reciprocals Sum average and Product199votes -
Reverse Floyds Triangle198votes -
Arithmetic Demonstration197votes -
Triangular Numbers194votes -
Find Vowels and Consonants194votes -
Perfect number189votes -
Count Occurrence of Character in string188votes -
Consecutive number185votes -
Exception Handling183votes -
Switch-Case183votes -
Sort Three numbers182votes -
Sum of Odd Numbers179votes -
Find Day of Given Date179votes -
Euclids GCD Algorithm177votes -
Indian rupees formatter177votes -
Multiplication Table177votes -
Print Binary Triangle176votes -
Convert binary to decimal175votes -
Collatz Sequence173votes -
Permutation of Strings172votes -
Ulam Sequence171votes -
Remove Character163votes -
Prime Factors161votes -
Gray Code156votes -
Name search153votes -
Method for finding maximum number amongst three153votes -
Print traingle of * using loops152votes -
Find Maximum and Minimum Temperature145votes -
Abundant Numbers140votes -
While loop test134votes -
Number Sequence130votes -
TrimSpace123votes -
First Day60votes -
Sum of the digits of the product of numbers from 1 to n.56votes -
Add the strings29votes
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Getting the Largest Value in an ArrayList8votes -
Stack3votes -
Locating the Largest Value in an ArrayList1votes -
Copying ArrayLists-3votes -
Find length of the longest String in ArrayList-6votes
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Constructor overloading95votes -
Overloading example78votes -
Overriding example54votes -
Books12votes -
Area of Shapes4votes
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ID Number Machine52votes -
Ask for certain number43votes -
slopePoint2votes -
Catch the Fish Again...!!-3votes -
Convert to centimeters-4votes
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Counter - inheritance404votes -
Area of a circle using inheritance76votes -
Method Overriding7votes -
PurchasedItem5votes -
Use Super5votes
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Print using toString317votes -
Author class32votes -
Circle class25votes -
Employee class10votes -
Date Class5votes -
Quadrant Point5votes -
Flip point3votes -
Area and Perimeter using Interfaces!1votes
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Changing Uppercase to Lowercase360votes -
Find length of the string328votes -
Capitalization283votes -
Longest Word200votes -
Palindrome Check200votes -
Change Case179votes -
String Manipulations126votes -
Username123votes -
Remove vowels from a Word71votes -
Toggle String45votes -
First half with second half34votes -
Bob There?8votes -
Decode URL!7votes -
List Letters5votes -
doublex5votes -
stringTimes4votes -
Has Bad4votes -
ComboString4votes -
Find Triplets4votes -
Substring Checker3votes -
Rotate left by two3votes -
Replacer3votes -
maxBlock3votes -
Romans Numbers to Arabic!3votes -
First Two3votes -
altPair2votes -
End Up2votes -
SumNumber2votes -
stringSplosion2votes -
compareTo() Challenge2votes -
Word Count!2votes -
SumNumber .....it's different1votes -
notReplace0votes -
Is it equal or Not???0votes -
Front Again-2votes
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Reverse a String using array290votes -
Add elements of an Array201votes -
Product of greatest and Smallest151votes -
Even numbers only44votes -
Swapping elements38votes -
Swap ends10votes -
tripleUp10votes -
Back-array-thon6votes -
Count Clumps5votes -
Locate The Largest In The Array!3votes -
Poke Trade3votes -
Average Score-11votes -
Poke Trade 2-13votes
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Square root of a number360votes -
Area of a circle256votes -
Multiple or not73votes -
Convert upper to lower case70votes -
Arithmetic Operations38votes -
Watch a Movie Now12votes -
Cigar Party11votes -
MixString10votes -
Share Digit9votes -
Find the car model6votes -
anglePairs5votes -
Prime number challenge4votes -
The Keychains Shop!-1votes -
Keychains for Sale, for real this time-17votes
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Sum of Prime Digits in a Number423votes -
Counting the number of a's.281votes -
Printing a box of #s227votes -
Sum of 5 integers157votes -
Binary to decimal130votes -
Reverse a Number109votes -
Dynamic adding88votes -
Table58votes -
Factorial value57votes -
Login37votes -
Do You Know The Pin??13votes -
Add Up The Inputs!13votes -
Printing a checkerboard12votes -
Test Palindromic Word12votes -
Extracting Digits10votes -
Collatz Sequence9votes -
Armstrong Numbers9votes -
A New Hope9votes -
Counting Machine7votes -
Binary6votes
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No multiples of 3,4317votes -
Right or Wrong40votes -
Space Boxing24votes -
Lucky Sum19votes -
Red lottery Ticket17votes -
Devry Admission Program14votes -
Sleep13votes -
Evenly Spaced10votes -
Date Fashion10votes -
Picture Menu9votes
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Absolute Equals255votes -
Floor and Ceiling of Number63votes -
Square root, Quadratic root?41votes -
Taylor series to find sine()18votes -
Denominations!15votes -
Sum Limit14votes -
sum of multiples of 3 or 5 below a number12votes -
Octal to Decimal11votes -
Hex2Dec6votes
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Arithmetic Operators364votes -
Degree to Fahrenheit converter274votes -
Arithmetic Operators190votes -
Largest of three numbers30votes -
Find Simple Interest25votes -
Leap year24votes
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Multiply any two numbers664votes -
Even or Odd576votes -
Declaring Variables525votes -
Variable Max Values172votes -
Testing your variable knowledge...109votes -
Prime number - Checker90votes -
Name, Age, and Salary42votes -
Area of Triangle42votes -
More User Input of Data-95votes
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