Please Provide me all necssary Screenshort, Commentds :(I use eclipse):

1. Write a Java method that pushes an integer number onto a stack one digit at a time from the least significant digit to the most significant digit. Then pop the digits from the stack and create a new number by multiplying a result by 10 for each digit popped. What is interesting about the result?

void funWithNumbers(int n) {

2.Write a Java class Height that has two class variables: feet and inches that describe the height of a person.

Implement the constructor, compareTo and equals methods.

Implement a main() that creates an ArrayList of Height objects and adds two Height items to the array.

3.Carry out the operations of evaluate by hand on the input expression

(((60 + 40) / 50) * (16 4)).

Draw the two stacks after each push or pop.