Hands-on Activity Blood Bank (Part 1) Objective: At the end of the activity, the students should be able to: • Create and overload constructors. Procedure: 1. Develop a simple program that stores a patient's blood details. Create two (2) classes named BloodData (no class modifier) and RunBloodData (public). 2. For the BloodData class: declare two (2) static String fields named bloodType for accepting O, A, B, and AB) and rhFactor (stands for Rhesus factor, an inherited protein found on the surface of red blood cells) for accepting + and -. 3. For the default constructor (public) of the BloodData class, set bloodType to "O" and rhFactor to 4. Create an overloaded constructor (public) with two (2) String parameters: bt and rh. In this constructor, bloodType should store bt while rhFactor should store rh. 5. Create a public method named display. This method will be used to display the values of bloodType and rhFactor. 6. In the RunBloodData class, import the Scanner class for the user input. 7. In the main method, add statements to ask the user to input the blood type and the Rhesus factor (+ or -). Instantiate a BloodData object name with arguments based on the user input. For example, BloodData bd = new BloodData(input1, input2); where input1 and input2 are String variables that stored what the user entered. If the user does not input anything, instantiate a BloodData object without an argument. 8. Print the confirmation message by invoking the display method through the object you created. For example, bd.display(); Note: Keep a copy of your code. It will be revised on your next laboratory session. Sample Output: Enter blood type of patient: Enter the Rhesus factor (+ or -): O+ is added to the blood bank. Enter blood type of patient: B Enter the Rhesus factor (+ or -): - B- is added to the blood bank. Explanation: In the first run, the user did not enter both values. Hence, the values stored in the default constructor are displayed.
Hands-on Activity Blood Bank (Part 1) Objective: At the end of the activity, the students should be able to: • Create and overload constructors. Procedure: 1. Develop a simple program that stores a patient's blood details. Create two (2) classes named BloodData (no class modifier) and RunBloodData (public). 2. For the BloodData class: declare two (2) static String fields named bloodType for accepting O, A, B, and AB) and rhFactor (stands for Rhesus factor, an inherited protein found on the surface of red blood cells) for accepting + and -. 3. For the default constructor (public) of the BloodData class, set bloodType to "O" and rhFactor to 4. Create an overloaded constructor (public) with two (2) String parameters: bt and rh. In this constructor, bloodType should store bt while rhFactor should store rh. 5. Create a public method named display. This method will be used to display the values of bloodType and rhFactor. 6. In the RunBloodData class, import the Scanner class for the user input. 7. In the main method, add statements to ask the user to input the blood type and the Rhesus factor (+ or -). Instantiate a BloodData object name with arguments based on the user input. For example, BloodData bd = new BloodData(input1, input2); where input1 and input2 are String variables that stored what the user entered. If the user does not input anything, instantiate a BloodData object without an argument. 8. Print the confirmation message by invoking the display method through the object you created. For example, bd.display(); Note: Keep a copy of your code. It will be revised on your next laboratory session. Sample Output: Enter blood type of patient: Enter the Rhesus factor (+ or -): O+ is added to the blood bank. Enter blood type of patient: B Enter the Rhesus factor (+ or -): - B- is added to the blood bank. Explanation: In the first run, the user did not enter both values. Hence, the values stored in the default constructor are displayed.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
explain and create a java code
Transcribed Image Text:Hands-on Activity
Blood Bank (Part 1)
Objective:
At the end of the activity, the students should be able to:
• Create and overload constructors.
Procedure:
1. Develop a simple program that stores a patient's blood details. Create two (2) classes named
BloodData (no class modifier) and RunBloodData (public).
2. For the BloodData class: declare two (2) static String fields named bloodType for accepting O, A,
B, and AB) and rhFactor (stands for Rhesus factor, an inherited protein found on the surface of red
blood cells) for accepting + and -.
3. For the default constructor (public) of the BloodData class, set bloodType to "O" and rhFactor to
'+'.
4. Create an overloaded constructor (public) with two (2) String parameters: bt and rh. In this
constructor, bloodType should store bt while rhFactor should store rh.
5. Create a public method named display. This method will be used to display the values of bloodType
and rhFactor.
6. In the RunBloodData class, import the Scanner class for the user input.
7. In the main method, add statements to ask the user to input the blood type and the Rhesus factor
(+ or -). Instantiate a BloodData object name with arguments based on the user input. For example,
BloodData bd = new BloodData(input1, input2); where input1 and input2 are String
variables that stored what the user entered. If the user does not input anything, instantiate a
BloodData object without an argument.
8. Print the confirmation message by invoking the display method through the object you created. For
example, bd.display();
Note: Keep a copy of your code. It will be revised on your next laboratory session.
Sample Output:
Enter blood type of patient:
Enter the Rhesus factor (+ or -):
O+ is added to the blood bank.
Enter blood type of patient: B
Enter the Rhesus factor (+ or -) :
B- is added to the blood bank.
Explanation: In the first run, the user did not enter both values. Hence, the values stored in the default
constructor are displayed.
Transcribed Image Text:Hands-on Activity
Blood Bank (Part 2)
Objective:
At the end of the activity, the students should be able to:
• Apply encapsulation to a program.
Software Requirements:
Latest version of NetBeans IDE
Java Development Kit (JDK) 8
Procedure:
1. Modify your program from 04 Hands-on Activity 1 to apply encapsulation. Make bloodType and
rhFactor non-static and private. Remove the constructor with two (2) parameters.
2. The names of the public setter and getter methods should be:
• setBloodType()
• setRhFactor()
• getBloodType()
getRhFactor()
3. Use the setter methods to accept user input.
4. Display the values by calling the getter methods.
Sample Output:
Enter blood type of patient:
Enter the Rhesus factor (+ or -):
O+ is added to the blood bank.
Enter blood type of patient: B
Enter the Rhesus factor (+ or -) :
B- is added to the blood bank.
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