/**

* @author hyperglory

* @date 2017/1/11 16:06

*/

public class CuncurrencyTest {

private static final long COUNT = 100000001l;

public static void main(String[] args) throws InterruptedException {

concurrency();

serial();

}

public static void concurrency() throws InterruptedException {

long start = System.currentTimeMillis();

Thread thread = new Thread(() -> {

int a = 0;

for (long i = 0; i < COUNT; i++) {

a += 5;

}

});

thread.start();

int b = 0;

for (long i = 0; i < COUNT; i++) {

b--;

}

long stop = System.currentTimeMillis();

thread.join();

System.out.println(stop - start);

}

public static void serial() {

long start = System.currentTimeMillis();

int a = 0;

for (long i = 0; i < COUNT; i++) {

a += 5;

}

int b = 0;

for (long i = 0; i < COUNT; i++) {

b--;

}

long stop = System.currentTimeMillis();

System.out.println(stop - start);

}

}