Java math challenge, What should be printed? int result = 0; result = result + (null != null ? 3 : 2); result += (1 & 2) == 1 ? 2 : 3; result += 1e5; result += 1e2; System.out....

Java Inheritance Puzzle,Imagine we have one interface and these classes: interface SuperType { void test(); } class DefaultSuperType implements SuperType{ @Override void test(){ Sy...

Java String Puzzle,Eclipse posted this Java puzzle to Twitter today: ...do you know what will be printed without coding it and trying it? 原文链接：Java String Puzzle

Solving the Cretan maze, So let's play the game Recently Leonora Der published great piece of work: Solve the Cretan maze. That challenge is really interesting because It doesn't r...

Write a script to identify similarity from two string.,Implement a similarity method that compares two strings and returns a number representing the percent similarity between the ...

Check if the chain has the same amount,Check if a string has the same amount of 'x' and 'o'. The method must return a Boolean value and must not be case-sensitive. The string can c...

Challenges,I will try to post challenges every day, like if you like the idea. If you have more ideas, let me know: D 原文链接：Challenges

Narcissistic number,A Narcissistic Number is a number that is the sum of its own digits, each one raised to the power of the number of digits. Example: 1^3 + 5^3 + 3^3 = 1 + 125 + ...

Write a simple but impactful script,Basic challenge (simple): Write a script that produces all possible 4-digit numbers (0000...9999), then put them into a random order and save th...