how can i write a program that declares a named constant to hold the number of quarts in a gallon (4). Also declare a variable to represent the number of quarts needed for a painting job, and assign an appropriate valuefor example, 18. Compute and display the number of gallons and quarts needed for the job. Display explanatory text with the valuesfor example,A job that needs 18 quarts requires 4 gallons plus 2 quarts.