Do you know Nuodle in Bellevue WA?
How do I add a validation to make sure the date string being passed to the method is in the ffg. format:
```'YYYY-MM-DD'
```
if it's not, method should raise some sort of error?
To add validation for the date string format in your method, you can use a library like `java.time.format` in Java 8 or later. Here's a step-by-step guide:
1. First, import the necessary classes:
```java
import java.time.FormatException;
import java.time.LocalDate;
```
2. Create a method with the desired input and output parameters:
```java
public LocalDate myMethod(String dateString) {
    // validation and parsing logic goes here
}
```
3.
How is arc defined in TikZ? It me to! I think what you're looking for is the `arc` command, which is used to draw an arc (a sector of a circle). The syntax is:
```
\arc[options]{center}{start angle}{end angle}[radius]--(options for the path to follow);
```
Here's a breakdown of the different parts:
- `center`: the center of the arc. It can be a coordinate, an anchor, or a node.
- `start angle`: the starting angle of the arc, measured in degrees counterclockwise from the