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:

1. A class Scanner in Java can be used to get user input and its methods can be used after the following statement is executed:Scanner input = new Scanner(System.in);One of its methods nextDouble() returns the next double value from the keyboard. Now you are requested to write a method enterHeight() which displays the message "Input height:

• and uses the method input.nextDouble() to get the user input. The process should be repeated until the input is non-negative. Finally the input should be returned. You can assume the aforementioned statement starting with Scanner has already been executed.

2. Write a method category(double height) which returns a suitable type in string form according to the following:

Condition				Type
height >= 200				Tall
100 <= height < 200			Medium
height < 100			Short