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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