Java -如何才能在不跳过一行的情况下执行一个read方法

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("请输入一行内容：");
        String line = scanner.nextLine();
        System.out.println("输入的内容为：" + line);
    }
}

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();
        scanner.nextLine(); // 消费掉nextInt方法留下的回车符
        System.out.print("请输入一行内容：");
        String line = scanner.nextLine();
        System.out.println("输入的整数为：" + num);
        System.out.println("输入的内容为：" + line);
    }
}