Please answer the below question in Java, thank you.

Question 3 A class Tree has an attribute height (of type double). (a) Write the getter and setter methods of the attribute. (b) Write a constructor (with a single parameter) which initializes the attribute using the parameter. (c) What is the output of the following program segment? double height = 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())