通过Scannerinput实现LocalDateTime(LocalDateTime via Scannerinput)

 我需要从Scanner插入一个LocalDateTime 。 我们需要使用输入格式 
 
dd.MM. HH:mm
 
 对于Scanner （不使用额外的变量！），如何将这些扫描值放入起始变量？ 
 
Scanner sc = new Scanner(System.in); 
System.out.println("Year:");
int year = sc.nextInt(); 

System.out.println("Start:");
//--- (?) scan something like dd.MM. HH:mm --- 
start = LocalDateTime.of(year, month, dayOfMonth, hour, minute)
 
 如果扫描的输入格式dd.MM. HH:mm dd.MM. HH:mm ，该程序应该抛出IllegalArgumentException 。 我知道它是如何工作的，所以你知道我们不能使用getsubstring()和getsubstring() :( 

I need to insert a LocalDateTime from a Scanner. We are required to use the input format
 
dd.MM. HH:mm
 
for the Scanner (without using extra variables!), how can I get these scanned values into the start variable? 
 
Scanner sc = new Scanner(System.in); 
System.out.println("Year:");
int year = sc.nextInt(); 

System.out.println("Start:");
//--- (?) scan something like dd.MM. HH:mm --- 
start = LocalDateTime.of(year, month, dayOfMonth, hour, minute)
 
If the scanned input is not in the format dd.MM. HH:mm, the program is supposed to throw an IllegalArgumentException. I know how THAT works, just so you know we can't use sc.next() and the getsubstring() :( 

原文：https://stackoverflow.com/questions/35485984