Use java programming for the following questions to have the solutions ready within today Jan 3 2020 at or before 8:00PM GMT+8 time zone:

Question 3

A class Tree has an attribute height (of type double).

(a) Write the getter and setter methods of the attribute.

2. Write a constructor (with a single parameter) which initializes the attribute using the parameter.
3. What is the output of the following program segment?

double height0 = 40; double height1 = 60; Tree tree2 = new Tree(80); Tree tree3 = new Tree(100); height0 = 120;

tree3 = tree2; tree2.setHeight(height0); System.out.println(height1+ ", " + tree3.getHeight());