The number of horses that should finish the race with the correct return is 10
But never passed the first requirement
package zh.codegym.task.task16.task1607;
import java.util.ArrayList;
import java.util.List;
/*
赛马
*/
public class Solution {
public static void main(String[] args) throws InterruptedException {
List<Horse> horses = prepareHorsesAndStart(10);
while (calculateHorsesFinished(horses) != horses.size()) {
}
}
public static int calculateHorsesFinished(List<Horse> horses) throws InterruptedException {
int finishedCount = 0;
//在此编写你的代码
while (finishedCount < 10) {
for (Horse h : horses) {
if (!h.isFinished()) {
System.out.println("正在等待 " + h.getName());
}
}
horses.get(0).join();
finishedCount++;
horses.get(1).join();
finishedCount++;
horses.get(2).join();
finishedCount++;
horses.get(3).join();
finishedCount++;
horses.get(4).join();
finishedCount++;
horses.get(5).join();
finishedCount++;
horses.get(6).join();
finishedCount++;
horses.get(7).join();
finishedCount++;
horses.get(8).join();
finishedCount++;
horses.get(9).join();
finishedCount++;
}
return finishedCount;
}
public static List<Horse> prepareHorsesAndStart(int horseCount) {
List<Horse> horses = new ArrayList<>(horseCount);
String number;
for (int i = 1; i < horseCount + 1; i++) {
number = i < 10 ? ("0" + i) : "" + i;
horses.add(new Horse("Horse_" + number));
}
for (int i = 0; i < horseCount; i++) {
horses.get(i).start();
}
return horses;
}
public static class Horse extends Thread {
private boolean isFinished;
public Horse(String name) {
super(name);
}
public boolean isFinished() {
return isFinished;
}
public void run() {
String s = "";
for (int i = 0; i < 1001; i++) { // 延迟
s += "" + i;
if (i == 1000) {
s = " 已完成比赛！";
System.out.println(getName() + s);
isFinished = true;
}
}
}
}
}