g1101_1200.s1116_print_zero_even_odd

Class ZeroEvenOdd

java.lang.Object

g1101_1200.s1116_print_zero_even_odd.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

Constructor Summary

Constructors

Constructor and Description
ZeroEvenOdd(int n)

Method Summary

Modifier and Type	Method and Description
void	even(IntConsumer printNumber)
void	odd(IntConsumer printNumber)
void	zero(IntConsumer printNumber)

Methods inherited from class java.lang.Object

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

Constructor Detail

ZeroEvenOdd

public ZeroEvenOdd(int n)

Method Detail

zero

public void zero(IntConsumer printNumber)
          throws InterruptedException

Throws:

InterruptedException

odd

public void odd(IntConsumer printNumber)
         throws InterruptedException

Throws:

InterruptedException

even

public void even(IntConsumer printNumber)
          throws InterruptedException

Throws:

InterruptedException