Package g1101_1200.s1116_print_zero_even_odd

Class ZeroEvenOdd

  • public class ZeroEvenOdd
extends Object
    1116 - Print Zero Even Odd.

    Medium

    You have a function printNumber that can be called with an integer parameter and prints it to the console.

    • For example, calling printNumber(7) prints 7 to the console.

    You are given an instance of the class ZeroEvenOdd that has three functions: zero, even, and odd. The same instance of ZeroEvenOdd will be passed to three different threads:

    • Thread A: calls zero() that should only output 0’s.
    • Thread B: calls even() that should only output even numbers.
    • Thread C: calls odd() that should only output odd numbers.

    Modify the given class to output the series "010203040506..." where the length of the series must be 2n.

    Implement the ZeroEvenOdd class:

    • ZeroEvenOdd(int n) Initializes the object with the number n that represents the numbers that should be printed.
    • void zero(printNumber) Calls printNumber to output one zero.
    • void even(printNumber) Calls printNumber to output one even number.
    • void odd(printNumber) Calls printNumber to output one odd number.

    Example 1:

    Input: n = 2

    Output: “0102”

    Explanation: There are three threads being fired asynchronously. One of them calls zero(), the other calls even(), and the last one calls odd(). “0102” is the correct output.

    Example 2:

    Input: n = 5

    Output: “0102030405”

    Constraints:

    • 1 <= n <= 1000