在nextInt()之后跳过扫描器nextLine()

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.print("请输入一个整数：");
        int num = scanner.nextInt();

        // 跳过nextInt()后的换行符
        scanner.nextLine();

        System.out.print("请输入一行字符串：");
        String str = scanner.nextLine();

        System.out.println("整数：" + num);
        System.out.println("字符串：" + str);
    }
}