JavaRush/Courses/New Java Syntax/Final tasks

Final tasks

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"Hello, soldier!"

"Hello, Captain Squirrels, sir!"

"I have great news for you. Here are some exercises to reinforce your skills. Work on them every day, and your competence will grow exponentially. They were specially designed for IntelliJ IDEA."

"Those previous exercises were for rookies. I've added some more advanced bonus exercises for the old-timers. Just for veterans."

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Dmitri Telinov

Уровень 5

22 December 2025, 19:40

Better to describe algorithm, Instead of:

public static String toBinary(int number) {
    String result = "";
    while (number != 0) {
        result = number % 2 + result;
        number /= 2;
    }
    return result;
}

I got this solution:

public static String toBinary(int number) {
    return String.format("%8s", Integer.toBinaryString(number)).replace(' ', '0');
}

Feel guilty because I tricked the system :D

Andrei Karavai

Уровень 30

6 November 2023, 02:20

The level with the most tasks so far😃 It's so nice that I don't have to go to work tomorrow

Andrei Karavai

Уровень 30

6 November 2023, 02:04

in the task "Binary encoding" the condition is described not correctly. To pass it you don't need to show leading zeros. So it must be not: (each character on a new line): C - 01000011 o - 01101111 d - 01100100 e - 01100101 G - 01000111 y - 01111001 m - 01101101 ! - 00100001 But like this: C - 1000011 o - 1101111 d - 1100100 e - 1100101 G - 1000111 y - 1111001 m - 1101101 ! - 100001