我有三个相互关联的值的列表。即学籍、学名和学名。
我正在使用Kotlin 存储它们。以下是代码:
val studentData = listOf(
Triple(first = "1", second ="Sam", third = "MIT"),
Triple(first = "2", second ="Johnny", third = "SYM"),
Triple(first = "3", second ="Depp", third =
public static void main(String[] args) {
Scanner user_input = new Scanner(System.in);
int i;
int n;
String a;
System.out.println("Enter the Class:");
a = user_input.next();
System.out.println("Enter the number of Students:");
n = user_input.nextIn
假设我有这两个模型:
class Post(models.Model):
pub_date = models.DateTimeField(auto_now=True)
num_views = models.IntegerField(default=0)
和
class PostDetails(models.Model):
title = models.CharField(max_length=128)
text = models.TextField(max_length=512)
language = models.CharField(max_lengt
运行错误
Exception in thread "main" java.util.InputMismatchException
at java.base/java.util.Scanner.throwFor(Scanner.java:939)
at java.base/java.util.Scanner.next(Scanner.java:1594)
at java.base/java.util.Scanner.nextInt(Scanner.java:2258)
at java.base/java.util.Scanner.nextInt(S