Need help in Java please.

The Harrison Group Life Insurance company computes annual policy premiums based on the age the customer turns in the current calendar year. The premium is computed by taking the decade of the customer$$s age, adding $15$ to it$,$ and multiplying by $20.$ For example, a $34-$year$-$old would pay $$360,$ which is calculated by adding the decades $(3)$ to $15$ and then multiplying by $20.$

Create a class called Insurance that prompts a user for the current year and a birth year. Pass both to a method called calculatePremium$()$ that calculates and returns the premium amount, and then display the returned amount.

An example of the program is shown below:

Enter the current year $>>2021$

Enter the birth year $>>1980$

The premium is $$380$