请在下面横线处填入适当的代码，将线程对象runner[2]的优先级设置为最高。
class ThreadTest extends Thread
public static void main(String args[])
ThreadTest[] runner = new ThreadTest[4];
for(int j = 0; j＜4; j++) runner[j] = new ThreadTest();
for(int j = 0; j＜4; j++) runner[j].start();
【7】
runner[3].setPriority(MIN_PRIORITY);
public void run)
for(int i = 0; i＜100000; i++);
System.out.println(getName() + "线程的优先级是:"
+ getPriority() + "计算完毕");