java - 以适当的顺序将项目添加到数组中

Question

我无法弄清楚如何正确执行此操作。所以我有这个可以包含 6 个项目的数组。我有一个 .txt 文件，其中一行包含一首歌曲，然后是该歌曲的作者，然后是下一首歌曲，然后是该歌曲的作者。对于一些人来说，依此类推。我的 .txt 文件总共有 12 行，但我只能在数组中放入总共 6 个项目。所以我想知道，如何将歌曲标题+艺术家放入数组的单个索引中。这样我以后就可以将其打印出来，作为“艺术家”的标题。

我的代码相当短，所以查看它可能会有所帮助。

/**This program creates a list of songs for a CD by reading from a file*/
import java.io.*;

public class CompactDisc
{
    public static void main(String [] args) throws IOException
    {
    FileReader file = new FileReader("Classics.txt");
    BufferedReader input = new BufferedReader(file);
    String title;
    String artist;

    //Declare an array of songs, called cd, of size 6
    String[] cd = new String[6];

    for (int i = 0; i < cd.length; i++)
    {
        title = input.readLine();
        artist = input.readLine();  
        // fill the array by creating a new song with 
        // the title and artist and storing it in the 
        // appropriate position in the array
     cd.add(title + artist);
    }

    System.out.println("Contents of Classics:");
    for (int i = 0; i < cd.length; i++)
    {
        //print the contents of the array to the console
    }
  }
}

这是 .txt 文件中的内容

Ode to Joy
Bach
The Sleeping Beauty
Tchaikovsky
Lullaby
Brahms
Canon
Bach
Symphony No. 5
Beethoven
The Blue Danube Waltz
Strauss

最终输出应该打印为:

Contents of Classics
Ode to Joy by Bach
The Sleeping Beauty by Tchaikovsky
Lullaby by Brahms
Canon by Bach
Symphony No. 5 by Beethoven
The Blue Danube Waltz by Strauss

Answer 1

您只需替换:

cd.add(title + artist);

作者:

cd[i] = title + " by " + artist;

然后打印它:

System.out.println(cd[i]);