Package g1101_1200.s1116_print_zero_even_odd

Class ZeroEvenOdd

java.lang.Object
g1101_1200.s1116_print_zero_even_odd.ZeroEvenOdd
public class ZeroEvenOdd extends java.lang.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

  • Constructor Summary

    Constructors
    Constructor
    Description
    ZeroEvenOdd(int n)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    even(java.util.function.IntConsumer printNumber)
     
    void
    odd(java.util.function.IntConsumer printNumber)
     
    void
    zero(java.util.function.IntConsumer printNumber)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • ZeroEvenOdd

      public ZeroEvenOdd(int n)

  • Method Details

    • zero

      public void zero(java.util.function.IntConsumer printNumber) throws java.lang.InterruptedException
      Throws:
      java.lang.InterruptedException

    • odd

      public void odd(java.util.function.IntConsumer printNumber) throws java.lang.InterruptedException
      Throws:
      java.lang.InterruptedException

    • even

      public void even(java.util.function.IntConsumer printNumber) throws java.lang.InterruptedException
      Throws:
      java.lang.InterruptedException