Question

我在尝试将用户输入保存到变量中，然后访问该变量的内容时遇到了一些麻烦。基本上，用户输入关于歌曲的细节，然后将其保存在下一个可用的歌曲槽中（总共4个槽）。但是当我检查一个插槽是空的还是填充时，它总是空的，因为最后一首歌的细节没有保存。

代码：

SongDatabase类：

if (song1.getFileSize() == 0) {        
    System.out.println("Name of song:");
    song1.setName(console.next());

    System.out.println("Artist:");
    song1.setArtist(console.next());

    System.out.println("File size (MB):");
    song1.setFileSize(console.nextInt());

    System.out.println("Duration (seconds):");
    song1.setDuration(console.nextInt());
}

else if (song2.getFileSize() == 0) {        
    System.out.println("Name of song:");
    song2.setName(console.next());

    System.out.println("Artist:");
    song2.setArtist(console.next());

    System.out.println("File size (MB):");
    song2.setFileSize(console.nextInt());

    System.out.println("Duration (seconds):");
    song2.setDuration(console.nextInt());
}

else if (song3.getFileSize() == 0) {        
    System.out.println("Name of song:");
    song3.setName(console.next());

    System.out.println("Artist:");
    song3.setArtist(console.next());

    System.out.println("File size (MB):");
    song3.setFileSize(console.nextInt());

    System.out.println("Duration (seconds):");
    song3.setDuration(console.nextInt());
}

else if (song4.getFileSize() == 0) {        
    System.out.println("Name of song:");
    song4.setName(console.next());

    System.out.println("Artist:");
    song4.setArtist(console.next());

    System.out.println("File size (MB):");
    song4.setFileSize(console.nextInt());

    System.out.println("Duration (seconds):");
    song4.setDuration(console.nextInt());
}

else {
    System.out.println("The database is currently full. Please delete a song before adding a new one.");
}

歌曲课程：

public void setName(String inputName) {
    name = inputName;
}

public String getName() {
    return name;
}

public void setArtist(String inputArtist) {
    artist = inputArtist;
}

public String getArtist() {
    return artist;
}

public void setFileSize(int inputFileSize) {
    fileSize = inputFileSize;
}

public int getFileSize() {
    return fileSize;
}

public void setDuration(int inputDuration) {
    duration = inputDuration;
}

public int getDuration() {
    return duration;
}

我是否需要在get / set方法中添加另一个参数，或者我做错了什么？非常感谢任何帮助，谢谢！

变量内容不持久

0 个答案: