Arrays - Bird Watcher: You track of how many birds have visited your garden in the last seven days. https://exercism.org/tracks/java/exercises/bird-watcher
Booleans - Annalyns Infiltration: Determine actions based on the state of three characters found and whether Annalyn's pet dog is present. https://exercism.org/tracks/java/exercises/annalyns-infiltration
Chars - Squeaky Clean: Implement a partial set of utility routines to help a developer clean up SqueakyClean names. https://exercism.org/tracks/java/exercises/squeaky-clean
Conditions - Blackjack: Simulate a strategy for the first turn of a Blackjack game. https://exercism.org/tracks/java/exercises/blackjack
Numbers - Cars, Assemble: Write code to analyze the production of an assembly line in a car factory. https://exercism.org/tracks/java/exercises/cars-assemble
Ternary Operators - Salary Calculator: Calculating the total salary of a employee in a month https://exercism.org/tracks/java/exercises/salary-calculator
Darts: Return the earned points in a single toss of a Darts game https://exercism.org/tracks/java/exercises/darts
Difference of Square: Find the difference between the square of the sum and the sum of the squares of the first N natural numbers. https://exercism.org/tracks/java/exercises/difference-of-squares
D&D Character: Randomly generate Dungeons & Dragons characters https://exercism.org/tracks/java/exercises/dnd-character
Gigasecond: Given a moment, determine the moment that would be after a gigasecond has passed. https://exercism.org/tracks/java/exercises/gigasecond
Handshake Calculator: Given a decimal number, convert it to the appropriate sequence of events for a secret handshake. https://exercism.org/tracks/java/exercises/secret-handshake
Scrabble Score: Given a word, compute the Scrabble score for that word. https://exercism.org/tracks/java/exercises/scrabble-score
Binary Search: Implement a binary search algorithm. https://exercism.org/tracks/java/exercises/binary-search
Flatten Array: Take a nested list and return a single flattened list with all values except nil/null https://exercism.org/tracks/java/exercises/flatten-array
Matrix: Given a string representing a matrix of numbers, return the rows and columns of that matrix. https://exercism.org/tracks/java/exercises/matrix
RotationalCipher: Create an implementation of the rotational cipher, also sometimes called the Caesar cipher. https://exercism.org/tracks/java/exercises/rotational-cipher
Saddle Points: Detect a Saddle point in a matrix https://exercism.org/tracks/java/exercises/saddle-points
Triangle: Determine if a triangle is equilateral, isosceles, or scalene. https://exercism.org/tracks/java/exercises/triangle
Word Count: Given a phrase, count the occurrences of each word in that phrase https://exercism.org/tracks/java/exercises/word-count