每个线程只对一个数据操作就不会出现线程安全问题-------------成员变量，用来计算累加的和...

package charpter12;

public class Processor implements Runnable {
private int count;
// 成员变量，用来计算累加的和
@Override
public void run() {
for (int i = 0; i <= 100; i++) {
count += i;

}
System.out.println(Thread.currentThread().getName() + "--------" + count);

}

}

-------------------

package charpter12;

public class Test {

public static void main(String[] args) {
Processor p = new Processor();
Processor p2 = new Processor();
Thread t1 = new Thread(p);
t1.setName("t1");
Thread t2 = new Thread(p2);
t2.setName("t2");
t1.start();
t2.start();
}

}