Java用户输入（扫描仪）

<code class="java">package afterfeb13;

import java.util.Scanner;

public class scanner {
    public static void main(String[] args) {

        int total10th = 0;
        int count10th = 0;
        int total12th = 0;
        int count12th = 0;

        Scanner sc = new Scanner(System.in);
        System.out.print("请输入姓名：");
        String name = sc.nextLine();
        System.out.println("欢迎来到 Java 世界，" + name + "！");

        System.out.println("请输入 10 年级 5 门科目的成绩：");
        int[] marks10th = new int[5];
        for (int i = 0; i < 5; i++) {
            System.out.print("请输入第 " + (i + 1) + " 门科目成绩：");
            marks10th[i] = sc.nextInt();
            total10th += marks10th[i];
            count10th++;
        }

        System.out.println("10 年级总分：" + total10th);


        System.out.println("请输入 12 年级 6 门科目的成绩：");
        int[] marks12th = new int[6];
        for (int i = 0; i < 6; i++) {
            System.out.print("请输入第 " + (i + 1) + " 门科目成绩：");
            marks12th[i] = sc.nextInt();
            total12th += marks12th[i];
            count12th++;
        }
        System.out.println("12 年级总分：" + total12th);

        sc.close();
    }
}</code>