Please explain why so i can understand, thank you

Write the following method signatures - you do NOT need to write the full body, just the method signature (ie: public static void main(String] args). For the access keywords, just use public static for all 1. A method named military TimeConverter that converts AM/PM time to military time (ie: 2200, 1830, etc...) 2. A method called is Shade OfRed that takes a hexcode of a color and decides if it is a shade of red or not 3. A method called fullNameCombiner that takes a person's first and last name and returns their full name