in Java language

Homework 1 What to Submit: A separate .java file for each problem 1. Create a version of the UnitConverter application to convert from inches to foot. Make up your own inches value. 2. Write a program that converts grams to pounds. (One pound equals 453.592 grams.) Read the grams value from the user as a floating point value. 3. Write a program that declares and initializes a variable representing the weight in milligrams from the keyboard. The program displays the equivalent weight in kilograms, grams, and milligrams. For example, 1050042 milligrams are equivalent to 1 kilogram, 50 grams, and 42 milligrams