From c1af62d1b2aa7090771fe9a5cef61593dec7708e Mon Sep 17 00:00:00 2001 From: Loiev Roman Date: Wed, 31 Dec 2025 13:38:28 +0200 Subject: [PATCH] Task completed --- logs/app.log | 40 ++++++++++++++++++++++ src/main/java/core/basesyntax/Counter.java | 13 ++++--- 2 files changed, 48 insertions(+), 5 deletions(-) create mode 100644 logs/app.log diff --git a/logs/app.log b/logs/app.log new file mode 100644 index 00000000..e7159737 --- /dev/null +++ b/logs/app.log @@ -0,0 +1,40 @@ +INFO core.basesyntax.Counter:18 Before decrementing, Thread # 1, counter value 20 +INFO core.basesyntax.Counter:21 After decrementing, Thread # 1, counter value 19 +INFO core.basesyntax.Counter:18 Before decrementing, Thread # 2, counter value 19 +INFO core.basesyntax.Counter:21 After decrementing, Thread # 2, counter value 18 +INFO core.basesyntax.Counter:18 Before decrementing, Thread # 3, counter value 18 +INFO core.basesyntax.Counter:21 After decrementing, Thread # 3, counter value 17 +INFO core.basesyntax.Counter:18 Before decrementing, Thread # 4, counter value 17 +INFO core.basesyntax.Counter:21 After decrementing, Thread # 4, counter value 16 +INFO core.basesyntax.Counter:18 Before decrementing, Thread # 5, counter value 16 +INFO core.basesyntax.Counter:21 After decrementing, Thread # 5, counter value 15 +INFO core.basesyntax.Counter:18 Before decrementing, Thread # 6, counter value 15 +INFO core.basesyntax.Counter:21 After decrementing, Thread # 6, counter value 14 +INFO core.basesyntax.Counter:18 Before decrementing, Thread # 7, counter value 14 +INFO core.basesyntax.Counter:21 After decrementing, Thread # 7, counter value 13 +INFO core.basesyntax.Counter:18 Before decrementing, Thread # 8, counter value 13 +INFO core.basesyntax.Counter:21 After decrementing, Thread # 8, counter value 12 +INFO core.basesyntax.Counter:18 Before decrementing, Thread # 9, counter value 12 +INFO core.basesyntax.Counter:21 After decrementing, Thread # 9, counter value 11 +INFO core.basesyntax.Counter:18 Before decrementing, Thread # 10, counter value 11 +INFO core.basesyntax.Counter:21 After decrementing, Thread # 10, counter value 10 +INFO core.basesyntax.Counter:18 Before decrementing, Thread # 11, counter value 10 +INFO core.basesyntax.Counter:21 After decrementing, Thread # 11, counter value 9 +INFO core.basesyntax.Counter:18 Before decrementing, Thread # 12, counter value 9 +INFO core.basesyntax.Counter:21 After decrementing, Thread # 12, counter value 8 +INFO core.basesyntax.Counter:18 Before decrementing, Thread # 13, counter value 8 +INFO core.basesyntax.Counter:21 After decrementing, Thread # 13, counter value 7 +INFO core.basesyntax.Counter:18 Before decrementing, Thread # 14, counter value 7 +INFO core.basesyntax.Counter:21 After decrementing, Thread # 14, counter value 6 +INFO core.basesyntax.Counter:18 Before decrementing, Thread # 15, counter value 6 +INFO core.basesyntax.Counter:21 After decrementing, Thread # 15, counter value 5 +INFO core.basesyntax.Counter:18 Before decrementing, Thread # 16, counter value 5 +INFO core.basesyntax.Counter:21 After decrementing, Thread # 16, counter value 4 +INFO core.basesyntax.Counter:18 Before decrementing, Thread # 17, counter value 4 +INFO core.basesyntax.Counter:21 After decrementing, Thread # 17, counter value 3 +INFO core.basesyntax.Counter:18 Before decrementing, Thread # 18, counter value 3 +INFO core.basesyntax.Counter:21 After decrementing, Thread # 18, counter value 2 +INFO core.basesyntax.Counter:18 Before decrementing, Thread # 19, counter value 2 +INFO core.basesyntax.Counter:21 After decrementing, Thread # 19, counter value 1 +INFO core.basesyntax.Counter:18 Before decrementing, Thread # 20, counter value 1 +INFO core.basesyntax.Counter:21 After decrementing, Thread # 20, counter value 0 diff --git a/src/main/java/core/basesyntax/Counter.java b/src/main/java/core/basesyntax/Counter.java index 4af46bd4..f235e609 100644 --- a/src/main/java/core/basesyntax/Counter.java +++ b/src/main/java/core/basesyntax/Counter.java @@ -7,16 +7,19 @@ public class Counter { private static final Logger logger = LogManager.getLogger(Counter.class); private static final String MESSAGE = "%20s, Thread # %2s, counter value %2d"; private int value; + private final Object lock = new Object(); public Counter(int value) { this.value = value; } public void decreaseValue() { - logger.info(String.format(MESSAGE, - "Before decrementing", Thread.currentThread().getName(), value)); - value--; - logger.info(String.format(MESSAGE, - "After decrementing", Thread.currentThread().getName(), value)); + synchronized (lock) { + logger.info(String.format(MESSAGE, + "Before decrementing", Thread.currentThread().getName(), value)); + value--; + logger.info(String.format(MESSAGE, + "After decrementing", Thread.currentThread().getName(), value)); + } } }