java - 在 Eclipse 中执行程序时找不到类

Question

这个问题已经有答案了:

Class.forName() throws ClassNotFoundException (1 个回答)

已关闭 8 年前。

下面是示例java代码

class Candy {
    static {
        print("Loading candy");
    }
}

class Gum {
    static { 
        print("Loading Gum"); 
    }
}

class Cookie {
    static { 
        print("Loading Cookie"); 
    }
}


public class SweetShop {
    public static void main(String[] args) {
        print("inside main");
        new Candy();
        print("after creating candy");
        try{
            Class.forName("Gum");   
        }
        catch(ClassNotFoundException e) {
            print("could not find gum class");
        }
        print("After Class.forName(\"Gum\")");
        new Cookie();
        print("After creating Cookie");
    }
}

当执行时，我总是会输出为

inside main

Loading candy

after creating candy

could not find gum class

After Class.forName("Gum")

Loading CookiePlease provide some help.After creating Cookie

Answer 1

如果您有软件包，请尝试此操作:

   Class.forName("package_name.Gum");