IN JAVA -CODE FOR THESE PROBLEMS

PP 2.8 Write a program that reads values representing the weight in kilograms, grams, and milligrams and then prints the equivalent weight in milligrams. (For example, 1 kilogram, 50 grams, and 42 milligrams is equivalent to 10,50,042illigrams.) Create a version of the previous project that reverses the com- putation. That is, read a value representing the weight in mi ligrams, then print the equivalent weight as a combination of kilograms, grams, and milligrams. (For example, 90,70,056 milligrams is equivalent to 9 kilograms, 70 grams, and 56 milligrams.) PP 2.9