Java 如何以24小时格式输入xx:xx，而不使用“xx:&引用；犯错误？

我必须以这种格式将24小时时钟转换为分钟，同时允许用户输入他们想要的任何时间。到目前为止，我的代码只允许他们输入XX:XX，只要两个XX之间有空格，而不是冒号。我尝试过使用分隔符，但这只是最后两个XX的剪辑，它将作为分钟

import java.util.*;

public class TaskA {

    ///import the tools necessary i.e java.util.* and Scanner console. I have also used a delimiter to render the ":" as not being read.

    static Scanner console = new Scanner(System.in).useDelimiter(":");

    public static void main(String[] args) {

    ///This is how I will define the time. using both hours and minutes for the console.

     int hours;
     int minutes;
     int total_mins;

    ///Here I have written how the question will come out and what the user will have to enter.

        System.out.print("Specify time (HH:MM) :   ");

    /// Here I have the hours and minutes being inputed, as well as a draft on the final statement.

        hours = console.nextInt();
        minutes = console.nextInt();

    ///This is the mathematical equation for total minutes. 

        total_mins = (hours * 60) + minutes;

    ///final statement.

        System.out.print(hours + ":" + minutes + " = " + total_mins + " Mins !");
    }
}

---

我会把它当作一根绳子，然后把它分开

 String line = console.nextLine();
 hours = Integer.parseInt(line.split(":")[0]);
 minutes = Integer.parseInt(line.split(":")[1]);

---

这是如何做到的：

String[] splitParts = console.nextLine().split(":");
if (splitParts.length >= 2)
    try
    {
        hours = Integer.parseInt(splitParts[0]);
        minutes = Integer.parseInt(splitParts[1]);
    } catch (NumberFormatException e)
    {
        System.err.println("The entered numbers were of invalid format!");
    }
else
{
    System.err.println("Please enter a input of format ##:##!");
}

---

正如您所看到的，这段代码也处理了用户输入的危险。

拆分分隔符上的字符串，您将得到两个一半。您看到我的答案了吗？看来您的代码应该按原样工作…谢谢！我已经为此强调了将近一个星期了，看到它这么容易就解决了，我感到很欣慰。最好是缓存分割的字符串：

string[]splitParts=console.nextLine（）.split（：”；如果（splitParts.length>=2）{hours=Integer.parseInt（splitParts[0]）；minutes=Integer.parseInt（splitParts[1]）；}否则{/*处理无效输入*/}