java 字符串 变量名

字符串 变量名"/>

java 字符串 变量名

参见英文答案 > Get variable by name from a String                                    6个

是否可以使用String作为变量名称..就像在这个例子中一样 –

String musicPlaying = "music2";

Music music1 = new Music("blaalla");

Music music2 = new Music("blalala");

Music music3 = new Music("balaada");

if(!musicPlaying.stillPlaying) { // As you can see i am using string as a variable name.

changeMusic();

}

解决方法:

您可以做的是将这些值关联(映射)到Music对象.这是一个例子：

Map musics = new HashMap<>();

String musicPlaying = "music2";

musics.put("music1", new Music("blaalla"));

musics.put("music2", new Music("blalala"));

musics.put("music3", new Music("balaada"));

if(!musics.get(musicPlaying).stillPlaying) { // As you can see i am using string as a variable name.

changeMusic();

}

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