I need a java code and use new eclipse

1. Write a program that declares a named constant to hold the number of quarts in a gallon (4) [1 gallon = 4 quarts]. Also declare a variable to represent the number of quarts needed for a painting job, and assign an appropriate value, for example, 18. Compute and display the number of gallons and quarts needed for the job. Display explanatory text with the values, for example, A job that needs 18 quarts requires 4 gallons plus 2 quarts. Save the program as QuartsToGallons.java.
2. Convert the QuartsToGallons program to an interactive application. Instead of assigning a value to the number of quarts, accept the value from the user as input. Save the revised program as QuartsToGallonsInteractive.java.