aadit/MIT-Curricular
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Update OOP/Java/Assignments/FISAC/Q10.java

Browse Source
This commit is contained in:
Aadit Agrawal 2024-10-28 03:06:19 +05:30
parent 54711066ac
commit 00b4a8e37c
1 changed files with 10 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
OOP/Java/Assignments/FISAC/Q10.java
View File

@ -1,5 +1,3 @@
import java.util.concurrent.locks.*;
class FullException extends Exception { class FullException extends Exception {
FullException(String msg) { super(msg); } FullException(String msg) { super(msg); }
} }
@ -7,31 +5,19 @@ class FullException extends Exception {
class Box<T> { class Box<T> {
private T[] items = (T[]) new Object[3]; private T[] items = (T[]) new Object[3];
private int count = 0; private int count = 0;
private Lock lock = new ReentrantLock();
private Condition notFull = lock.newCondition(), notEmpty = lock.newCondition();
void add(T item) throws FullException, InterruptedException { synchronized void add(T item) throws FullException, InterruptedException {
lock.lock(); if (count == items.length) throw new FullException("Box is full");
try { while (count == items.length) wait();
if (count == items.length) throw new FullException("Box is full"); items[count++] = item;
while (count == items.length) notFull.await(); notifyAll();
items[count++] = item;
notEmpty.signal();
} finally {
lock.unlock();
}
} }
T retrieve() throws InterruptedException { synchronized T retrieve() throws InterruptedException {
lock.lock(); while (count == 0) wait();
try { T item = items[--count];
while (count == 0) notEmpty.await(); notifyAll();
T item = items[--count]; return item;
notFull.signal();
return item;
} finally {
lock.unlock();
}
} }
boolean isEmpty() { boolean isEmpty() {