我想在Java中使用后台运行计时器,从在终端上显示或打印消息的那一刻开始,直到用户在输入字符串后按下输入的那一刻。有可能这样做吗?如果是,那怎么办?
答案 0 :(得分:0)
示例代码,用于获取用户输入的时间(以秒为单位)。
import java.util.Scanner;
public class StopWatchDemo {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("Please type a message: ");
long start = System.currentTimeMillis();
String input = scanner.nextLine();
long end = System.currentTimeMillis();
double elapsedSeconds = (end - start) / 1000.0;
System.out.println("User input: " + input);
System.out.println("Time taken (sec): " + elapsedSeconds);
}
}
运行输出
Please type a message:
This is a user message <press Enter key>
User input: This is a user message
Time taken (sec): 10.106