Problems
Select a problem to open the IDE and start coding.
Easy
Get Value at IndexEasy
›Get Array LengthEasy
›Sum of Array ElementsEasy
›
Is Even
Premium
Easy
🔒
Is Positive
Premium
Easy
🔒
Max of Two
Premium
Easy
🔒
Sum To
Premium
Easy
🔒
Contains Negative
Premium
Easy
🔒
Find First
Premium
Easy
🔒
Get String Length
Premium
Easy
🔒
First N Characters
Premium
Easy
🔒
To Uppercase
Premium
Easy
🔒
Rectangle Class
Premium
Easy
🔒
Counter Class
Premium
Easy
🔒
Person Class
Premium
Easy
🔒
ArrayList Sum
Premium
Easy
🔒
ArrayList Max
Premium
Easy
🔒
ArrayList Count Even
Premium
Easy
🔒
Sum of Row
Premium
Easy
🔒
Count Zeros
Premium
Easy
🔒
Diagonal Sum
Premium
Easy
🔒
Extend Animal
Premium
Easy
🔒
Extend Shape
Premium
Easy
🔒
Named Animal
Premium
Easy
🔒
Medium
Count Values Greater Than 10Medium
›Increment All ElementsMedium
›Letter GradeMedium
›
Clamp
Premium
Medium
🔒
Sum While Positive
Premium
Medium
🔒
Reverse String
Premium
Medium
🔒
Count Character
Premium
Medium
🔒
Is Palindrome
Premium
Medium
🔒
Temperature Class
Premium
Medium
🔒
BankAccount Class
Premium
Medium
🔒
Filter Positives
Premium
Medium
🔒
Reverse ArrayList
Premium
Medium
🔒
Row Maximums
Premium
Medium
🔒
Matrix Transpose
Premium
Medium
🔒
Manager Salary
Premium
Medium
🔒
Override toString
Premium
Medium
🔒
Factorial
Premium
Medium
🔒
Sum of Digits
Premium
Medium
🔒
Fibonacci
Premium
Medium
🔒
Hard
Count Increasing Adjacent Pairs
Premium
Hard
🔒
Is Leap Year
Premium
Hard
🔒
Longest Run
Premium
Hard
🔒
Caesar Cipher
Premium
Hard
🔒
Stack Class
Premium
Hard
🔒
Running Total
Premium
Hard
🔒
Saddle Point
Premium
Hard
🔒
Electric Vehicle
Premium
Hard
🔒
Power
Premium
Hard
🔒
Count Occurrences
Premium
Hard
🔒
Reverse Array Recursively
Premium
Hard
🔒