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ThreadSafeCache.java

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/**

* @author xjn

* @since 2020-03-01

*/

public class ThreadSafeCache {

int result;

public int getResult() {

return result;

}

public void setResult(int result) {

this.result = result;

}

public static void main(String[] args) {

ThreadSafeCache threadSafeCache = new ThreadSafeCache();

for (int i = 0; i < 8; i++) {

new Thread(() -> {

int x = 0;

while (threadSafeCache.getResult() < 100) {

x++;

}

System.out.println(x);

}).start();

}

try {

Thread.sleep(1000);

} catch (InterruptedException e) {

e.printStackTrace();

}

threadSafeCache.setResult(200);

}

}