Please solve Java clearly, and make solution ready to be copied

Create a class called Washington that implements the following interface interface Cityt Ilconverts latitude and longitude in String form to double form public double convertLat(String lat); public double convertLon(String lon); //print Neighborhoods in alphabetical order, might need to google some places public void printNeighborhoods(String one, String two, String three) //confirm that zipcode is in Washington DC, might need to google range public boolean confirmZip(int zipcode); The input is: 38.9872 N. The output is: 38.9072 //Optional Implementation public void exercise_1_optional_Q10; public void exercise_1_optional_Q20; public void exercise_1_optional_Q30; public void exercise_1_optional_Q40 The input is: 77.0369 W. The output is: 77.0369 Input: Columbia Heights, Shaw, Adams Morgan Output: Adams Morgan, Columbia Heights, Shaw The zipcode 20008 is in DC The zipcode 98210 is NOT in DC