Question

我正在用Java做些小练习。我需要输入3部电影的三个详细信息（标题，类型和等级），然后进行显示。

因此，基本上，我必须为每个私有数据成员编写适当的getter和setter方法，并且还应该为应用程序编写适当的构造函数，该应用程序包括一个tester / driver类，该类创建Movie类的三个实例并将其存储在数组。测试人员类应使用for循环来设置Movie对象的标题，类型和等级。还应该使用for循环，该循环应遍历数组并显示数组每个元素的标题，类型和等级，并为每个对象调用playIt（）方法。

到目前为止，这是我的movie.class和movieTester.class代码

public class Movie {

// Declare Private Variables

private String title;
private String genre;
private int rating;




// Default constructor
    public Movie() {

    }


    /// The constructors ///

    public Movie(String title,String genre, int rating) {
        this.title = title;
        this.genre = genre;
        this.rating = rating;

    }


    // Getter and setter methods

    public String getTitle() { // getTitle
        return title;
    }

    public void setTitle(String title) { // SetTitle
        this.title = title;
    }


    public String getGenre() { // GetGenre
        return genre;
    }

    public void setGenre(String genre) { // SetGenre
        this.genre = genre;
    }

    public int getRating() { // GetRating
        return rating;
    }

    public void setRating(int rating) { // SetRating
        this.rating = rating;
    }



public void playIt(){
     System.out.println("Playing the Movie");
    }

}

这是针对MovieTester.class

  import java.util.Scanner;

public class MovieTester {

    public static void main(String[] args) {

        Scanner input = new Scanner(System.in); //Create Scanner input


         // Populate using an array of Movie's

        Movie mymovie[] = new Movie[3];


        // Using for loop

         for (int i = 0; i < 3; i++) {
             Movie movie = new Movie();


            // Enter Details For Movie
            System.out.println("Please Enter The Title Of Movie: ");
            String title = input.nextLine();
            movie.setTitle(title);

            System.out.println("Please Enter The Genre Of Movie: ");
            String genre = input.nextLine();
            movie.setGenre(genre);

            System.out.println("Please Enter The Rating Of Movie: ");
            int ret  = Integer.parseInt(input.next());
            movie.setRating(ret);

            System.out.println();

            mymovie[i] = movie;
        }





        // Using  for  loop o traverse the.
        // array and display the title, genre and rating,
        // for each element of the array


        for (int i = 0; i < mymovie.length; i++) {
            Movie movie = mymovie[i];

            System.out.println("Title: " + movie.getTitle());
            System.out.println("Genre: " + movie.getGenre());
            System.out.println("Rating: " + movie.getRating());
            mymovie[i].playIt();
            System.out.println();
        }
    }



    }

当我运行它时，我得到的是：

    Please Enter The Title Of Movie: 
Harold and Kumar
Please Enter The Genre Of Movie: 
Comedy
Please Enter The Rating Of Movie: 
5

Please Enter The Title Of Movie: 
Please Enter The Genre Of Movie: 
Comedy
Please Enter The Rating Of Movie: 
4

Please Enter The Title Of Movie: 
Please Enter The Genre Of Movie: 
Action
Please Enter The Rating Of Movie: 
3

Title: Harold and Kumar
Genre: Comedy
Rating: 5
Playing the Movie

Title: 
Genre: Comedy
Rating: 4
Playing the Movie

Title: 
Genre: Action
Rating: 3
Playing the Movie

输出的问题是在输入第一个完整的电影详细信息（标题，流派和等级）之后。它跳过了输入电影“标题”（第二和第三）的操作，只能输入流派和等级。

“ for循环”可能存在一些问题。但是无法弄清楚。有人可以告诉我代码有什么问题吗？

跳过一些输入-Java

0 个答案: