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16 changes: 15 additions & 1 deletion src/main/java/io/github/winroot33/Main.java
Original file line number Diff line number Diff line change
@@ -1,6 +1,20 @@
package io.github.winroot33;

public class Main {
public static void main(String[] args) {
public static void main(String[] args) throws InterruptedException {
int maxNumberToPrint = 500;

NumberPrinter oddPrinter = new NumberPrinter(maxNumberToPrint, false);
NumberPrinter evenPrinter = new NumberPrinter(maxNumberToPrint, true);

Thread oddThread = new Thread(oddPrinter);
Thread evenThread = new Thread(evenPrinter);

oddThread.start();
evenThread.start();

oddThread.join();
evenThread.join();
System.out.println("Work Finished");
}
}
42 changes: 42 additions & 0 deletions src/main/java/io/github/winroot33/NumberPrinter.java
Original file line number Diff line number Diff line change
@@ -0,0 +1,42 @@
package io.github.winroot33;

import lombok.RequiredArgsConstructor;
import lombok.SneakyThrows;

/**
* Класс для вывода четных или нечетных чисел
* lock - объект для синхронизации
*/
@RequiredArgsConstructor
public class NumberPrinter implements Runnable {

private static final Object lock = new Object();
private static int number;

private final int maxNumber;
private final boolean sendEven;

@SneakyThrows
@Override
public void run() {
synchronized (lock) {
while (number <= maxNumber) {
while ((number % 2 == 0) != sendEven) {
lock.wait();
}

if (number > maxNumber) {
lock.notifyAll();
return;
}

System.out.printf("Thread: %s\t Even: %s \tNumber: %d\n",
Thread.currentThread().getName(), sendEven, number);
number++;

lock.notifyAll();
}
}
}

}