Java

Write a program to solve the quadratic equations

The user should be able to enter a, b, and c.

The output will be the two values of x.

The program should be able to handle the problem of possible imaginary number (NanException)

Write a program that reads numbers from a text file and writes in a different file the number and if the number is odd or even.

You need to create a text file to save the numbers first.

al wiki How to Solve Quadratic Equations