解决方法
这是一个从stdin读取字符串的简单代码,将它们添加到List< String>中,然后使用toArray将其转换为String [](如果您确实需要使用数组).
import java.util.*; public class UserInput { public static void main(String[] args) { List<String> list = new ArrayList<String>(); Scanner stdin = new Scanner(system.in); do { System.out.println("Current list is " + list); System.out.println("Add more? (y/n)"); if (stdin.next().startsWith("y")) { System.out.println("Enter : "); list.add(stdin.next()); } else { break; } } while (true); stdin.close(); System.out.println("List is " + list); String[] arr = list.toArray(new String[0]); System.out.println("Array is " + Arrays.toString(arr)); } }
也可以看看:
> Why is it preferred to use Lists instead of Arrays in Java?
> Fill a array with List data