write it in JavaProgram

A grocery shop has special promotion for their guests as a New Year gift. The promotion is based on how much customer buy the products. The conditions are listed below:

Discount 2$ if bought between 5$ to 30$

Discount 3% if bought from 30$ and less than 80$

Discount 7% if bought from 80$ and less than 150$

Discount 12% if bought from 150$ and less than 300$

Discount 25% if bought from 300$ and above

Write a program to calculate how much money a customer needed to pay due to given amount of buy (cost).