class TestThread implements Runnable {
int y = 1;
public static void main(String args[]) throws InterruptedException {
TestThread t = new TestThread();
Thread t1 = new Thread(t);
t1.start();
Thread t2 = new Thread(t);
t2.start();
}
char x = 'A';
String s = new String();
public void run() {
while (y < 60) {
synchronized (s) {
if (y%3==1) {
x = 'A';
System.out.print(x);
} else {
x = 'B';
System.out.print(x);
}
y++;
try {
Thread.sleep(10);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
}
public static int getMiddle(int[] list, int low, int high) {
int tmp = list[low];
while(low <high) {
while(low < high && list[high] > tmp) {
high--;
}
list[low] = list[high];
while(low < high && list[low] < tmp) {
low++;
}
list[high] = list[low];
}
list[low] = tmp;
return low;
}
public static void quickSort(int[] list, int low, int high) {
for(int i=0;i< list.length ; i++) {
System.out.print(list[i] + ",");
}
System.out.println();
int mid = getMiddle(list,low,high);
quickSort(list,low,mid-1);
quickSort(list,mid+1,high);
}