//来 自 n o w j a v a . c o m
import java.io.FileOutputStream;
import java.util.Random;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
public class Main {
static Lock myLock = new ReentrantLock();
static Random random = new Random();
public static void main(String[] args) {
myLock.lock();
try {
int number = random.nextInt(5);
int result = 100 / number;
System.out.println("A result is " + result);
try (FileOutputStream file = new FileOutputStream("file.out")) {
file.write(result);
}
/*
from n o w j a v a . c o m - 时 代 Java
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