Question: How do I start my function every 5 minutes and 20 seconds? I used: 

```
self.timer = QtCore.QTimer(self)
self.timer.timeout.connect(self.updateplot)
self.timer.start(310000)

```

But I'd like to set it by the time of my PC - so if I start the program at 3:23, the update track is at 3:25:20, 3:30:20 etc.

Answer: 
you can use reflection.

```
Dog dog = new Dog("val1", "val2", "val3");
            List<String> list = new ArrayList<>();
            for(Field field: Dog.class.getDeclaredFields()) {
                // since fields are private we need to first mark it accesible
                field.setAccessible(true);
                if( field.getType().equals(String.class)) {
                        list.add((String) field.get(dog));
                }
            }

```
You can think like this that a dog has several properties or attributes like breed type, origin, name and many more. You can add the values to list also, but it will be better to maintain a map because while retrieving you have to know what you are trying to retrieve.

It will be better to maintain a Map of attributes and actual values. The code may be like this.

```
public class Dog {
    private Map<String,String> attributesMap = new HashMap<>();

    //getter and setter for attributesMap

}   

```

You can create instance of Dog class and add the attributes like this.

```
Dog dog = new Dog();
dog.getAttributesMap().put("breed", "some breed");
dog.getAttributesMap().put("origin", "some some origin");

System.out.println("What is the breed type: "+dog.getAttributesMap().get("breed");

```