java - 这是否正确地将名称和等级存储到数组中？

Question

这是否正确地将名称和成绩存储到数组中？

public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        //Enter name and grade and save in an array
        Scanner input = new Scanner(System.in);
        String [] name = new String [50];
        int [] grade = new int[50];       

        for (int i = 0; i < 50; i++){
            System.out.println("Enter students name: ");
            String studentName = input.nextLine();

            name[i] = studentName;

            System.out.println("Enter students grade = ");
            int studentGrade = input.nextInt();

            grade [i] = studentGrade;

        }
    }
}

Answer 1

是的。为什么运行此代码后不能打印数组来检查是否正常？

要打印数组，假设arr，只需执行以下操作:

for(int i = 0; i < arr.length; i++) //go over all i's from 0 to the array length
    system.out.print(arr[i]); // and print the value of the array in the i'th place each time