From 71763b1c53b26057c7676daf3e2244c1ccdcdb62 Mon Sep 17 00:00:00 2001 From: katrusyavshch Date: Sat, 24 May 2025 21:24:48 +0300 Subject: [PATCH] add threads decrease counter --- .gitignore | 1 + logs/app.log | 40 ++++++++++++++++++++++ src/main/java/core/basesyntax/Counter.java | 4 +-- 3 files changed, 43 insertions(+), 2 deletions(-) create mode 100644 logs/app.log diff --git a/.gitignore b/.gitignore index 6366460f..c3cd9614 100644 --- a/.gitignore +++ b/.gitignore @@ -1,3 +1,4 @@ .idea/* *.iml target/* + diff --git a/logs/app.log b/logs/app.log new file mode 100644 index 00000000..fbfbd3c3 --- /dev/null +++ b/logs/app.log @@ -0,0 +1,40 @@ +INFO core.basesyntax.Counter:16 Before decrementing, Thread # 1, counter value 20 +INFO core.basesyntax.Counter:19 After decrementing, Thread # 1, counter value 19 +INFO core.basesyntax.Counter:16 Before decrementing, Thread # 20, counter value 19 +INFO core.basesyntax.Counter:19 After decrementing, Thread # 20, counter value 18 +INFO core.basesyntax.Counter:16 Before decrementing, Thread # 19, counter value 18 +INFO core.basesyntax.Counter:19 After decrementing, Thread # 19, counter value 17 +INFO core.basesyntax.Counter:16 Before decrementing, Thread # 18, counter value 17 +INFO core.basesyntax.Counter:19 After decrementing, Thread # 18, counter value 16 +INFO core.basesyntax.Counter:16 Before decrementing, Thread # 17, counter value 16 +INFO core.basesyntax.Counter:19 After decrementing, Thread # 17, counter value 15 +INFO core.basesyntax.Counter:16 Before decrementing, Thread # 16, counter value 15 +INFO core.basesyntax.Counter:19 After decrementing, Thread # 16, counter value 14 +INFO core.basesyntax.Counter:16 Before decrementing, Thread # 15, counter value 14 +INFO core.basesyntax.Counter:19 After decrementing, Thread # 15, counter value 13 +INFO core.basesyntax.Counter:16 Before decrementing, Thread # 14, counter value 13 +INFO core.basesyntax.Counter:19 After decrementing, Thread # 14, counter value 12 +INFO core.basesyntax.Counter:16 Before decrementing, Thread # 13, counter value 12 +INFO core.basesyntax.Counter:19 After decrementing, Thread # 13, counter value 11 +INFO core.basesyntax.Counter:16 Before decrementing, Thread # 12, counter value 11 +INFO core.basesyntax.Counter:19 After decrementing, Thread # 12, counter value 10 +INFO core.basesyntax.Counter:16 Before decrementing, Thread # 11, counter value 10 +INFO core.basesyntax.Counter:19 After decrementing, Thread # 11, counter value 9 +INFO core.basesyntax.Counter:16 Before decrementing, Thread # 10, counter value 9 +INFO core.basesyntax.Counter:19 After decrementing, Thread # 10, counter value 8 +INFO core.basesyntax.Counter:16 Before decrementing, Thread # 9, counter value 8 +INFO core.basesyntax.Counter:19 After decrementing, Thread # 9, counter value 7 +INFO core.basesyntax.Counter:16 Before decrementing, Thread # 8, counter value 7 +INFO core.basesyntax.Counter:19 After decrementing, Thread # 8, counter value 6 +INFO core.basesyntax.Counter:16 Before decrementing, Thread # 7, counter value 6 +INFO core.basesyntax.Counter:19 After decrementing, Thread # 7, counter value 5 +INFO core.basesyntax.Counter:16 Before decrementing, Thread # 6, counter value 5 +INFO core.basesyntax.Counter:19 After decrementing, Thread # 6, counter value 4 +INFO core.basesyntax.Counter:16 Before decrementing, Thread # 5, counter value 4 +INFO core.basesyntax.Counter:19 After decrementing, Thread # 5, counter value 3 +INFO core.basesyntax.Counter:16 Before decrementing, Thread # 4, counter value 3 +INFO core.basesyntax.Counter:19 After decrementing, Thread # 4, counter value 2 +INFO core.basesyntax.Counter:16 Before decrementing, Thread # 3, counter value 2 +INFO core.basesyntax.Counter:19 After decrementing, Thread # 3, counter value 1 +INFO core.basesyntax.Counter:16 Before decrementing, Thread # 2, counter value 1 +INFO core.basesyntax.Counter:19 After decrementing, Thread # 2, counter value 0 diff --git a/src/main/java/core/basesyntax/Counter.java b/src/main/java/core/basesyntax/Counter.java index 4af46bd4..6870cc39 100644 --- a/src/main/java/core/basesyntax/Counter.java +++ b/src/main/java/core/basesyntax/Counter.java @@ -6,13 +6,13 @@ 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 volatile int value; public Counter(int value) { this.value = value; } - public void decreaseValue() { + public synchronized void decreaseValue() { logger.info(String.format(MESSAGE, "Before decrementing", Thread.currentThread().getName(), value)); value--;