Program 5 Solution

Description

Question 1 ^{3 / 3 pts}

Write a program that asks the user to enter a sentence.

Using matches method using only one pattern validate that the entered sentence consists only of letters and ends with either: a period, an exclamation mark, or a question mark. To check if the given string represents a valid sentence define a pattern as shown in the Chapter 5 Lecture Notes.

If it is not a valid sentence, your program should output that the input is not valid.

Otherwise the input should be displayed with all the vowels replaced with an # character (see lecture notes for the example)

The following shows sample runs of the program:

Question 2 ^{3 / 3 pts}

Write a program that takes the x and y coordinates of a point in the

Cartesian plane as doubles and prints a message telling either:

the axis on which the point lies

or the quadrant in which it is found.

If the point lies in a quadrant the program should also calculate and print the distance between the point and the origin (point [0,0]) using the following formula:

See sample runs of the program:

Question 3 ^{3 / 4 pts}

Download the attached document DayOfWeekTrick.docx

(https://cilearn.csuci.edu/files/535027/download?wrap=1) and follow the instructions.

For this question please submit:

1. DayOfWeekTrick.docx with your answers

2. Weekday.java – that implements the algorithm

3. Two sample runs: one for Carroll’s birthday and one for your birthday