class Main {
    public static void main(String[] args) {
        
        Object obj = new Double(5.5);
        
        meth(obj);
    }
    
    public static void meth(Object obj) {
        System.out.println("object");
    }
    
    public static void meth(Double d) {
        System.out.println("double");
    }

    public static void meth(Integer d) {
        System.out.println("integer");
    }
}