Java boolean 值和函数不起作用

Question

好的，每个人都确信这是一个简单的修复。

public class function {
    public static void main(String[] args)
    {
        public boolean playButton = true;
        public boolean playMusic() {
            if (playButton) {
                System.out.println("Music"); 
            } else {
                System.out.println("No Music");
            }
    }
}

我想要的只是让终端打印出音乐。

Answer 1

您应该在“main”方法外部声明“playMusic”函数并从 main 调用它，尝试如下所示:

public class function {
    static boolean playButton;
    public static void main(String[] args)
    {
        playButton = true;
        playMusic();
    }
    public static void playMusic() {
        if (playButton) {
            System.out.println("Music"); 
        } else {
            System.out.println("No Music");
        }
    }
}