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When you start the Tip Calculator App it should display the screen with the following status: > Text box for entering total amount is set to 0.00 > Text box for entering tax amount is set to 0.00 > Radio button for 0% is selected. > Text view to display tip amount is set to 0.00 > Text view to display grand total (total amount + tax amount + tip amount) is set to 0.00 Also, add the following functionality for our buttons: Clear Button > Set text box for entering total amount to 0.00 > Set text box for entering tax amount to 0.00 > Select the 0% radio button. > Set text view to display tip amount is set to 0.00 > Set text view to display grand total (total amount + tax amount + tip amount) is set to 0.00 Calculate Button > Read the data from text box for entering total amount > Read the data from text box for tax amount > Check the status of radio button to determine the tip percentage > Calculate tip amount = total amount * tip percentage > Calculate grand total = total amount + tax amount + tip amount > Display the result using appropriate text views.

When you start the Tip Calculator App it should display the screen with the following status: > Text box for entering total amount is set to 0.00 > Text box for entering tax amount is set to 0.00 > Radio button for 0% is selected. > Text view to display tip amount is set to 0.00 > Text view to display grand total (total amount + tax amount + tip amount) is set to 0.00 Also, add the following functionality for our buttons: Clear Button > Set text box for entering total amount to 0.00 > Set text box for entering tax amount to 0.00 > Select the 0% radio button. > Set text view to display tip amount is set to 0.00 > Set text view to display grand total (total amount + tax amount + tip amount) is set to 0.00 Calculate Button > Read the data from text box for entering total amount > Read the data from text box for tax amount > Check the status of radio button to determine the tip percentage > Calculate tip amount = total amount * tip percentage > Calculate grand total = total amount + tax amount + tip amount > Display the result using appropriate text views.

Database System Concepts
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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**1. Display of Correct Data on Startup** - Use a hint to display "0.00" in the text box for entering the total amount and tax amount. **2. Implementation of Code for Clear Button** - Allows deletion of text in the total amount and tax amount boxes so that "0.00" is displayed as a hint. **3. Implementation of Code for Calculate Button** - Ensure all calculations are done correctly. **4. Formatting of Tip Amount and Grand Total** - Display the tip amount and grand total using a precision of two decimal places. The appropriate currency symbol should be included. **5. Error Handling** - If the total amount and/or tax amount text box is blank, handle the error using a try/catch block.
Transcribed Image Text:**1. Display of Correct Data on Startup** - Use a hint to display "0.00" in the text box for entering the total amount and tax amount. **2. Implementation of Code for Clear Button** - Allows deletion of text in the total amount and tax amount boxes so that "0.00" is displayed as a hint. **3. Implementation of Code for Calculate Button** - Ensure all calculations are done correctly. **4. Formatting of Tip Amount and Grand Total** - Display the tip amount and grand total using a precision of two decimal places. The appropriate currency symbol should be included. **5. Error Handling** - If the total amount and/or tax amount text box is blank, handle the error using a try/catch block.
### Tip Calculator App Instructions **Initial Display Settings:** When you start the Tip Calculator App, the screen should display the following initial settings: - **Total Amount Text Box:** Set to 0.00 - **Tax Amount Text Box:** Set to 0.00 - **Radio Button:** 0% is selected - **Tip Amount Display:** Set to 0.00 - **Grand Total Display (Total Amount + Tax Amount + Tip Amount):** Set to 0.00 **Button Functionalities:** 1. **Clear Button:** - Reset the text box for entering the total amount to 0.00 - Reset the text box for entering the tax amount to 0.00 - Ensure the 0% radio button is selected - Reset the tip amount display to 0.00 - Reset the grand total display to 0.00 2. **Calculate Button:** - Retrieve data from the total amount text box - Retrieve data from the tax amount text box - Determine the tip percentage from the selected radio button - Calculate the tip amount using the formula: `Tip Amount = Total Amount * Tip Percentage` - Calculate the grand total using the formula: `Grand Total = Total Amount + Tax Amount + Tip Amount` - Display results using the appropriate text views **Note:** Ensure all numbers are formatted properly.
Transcribed Image Text:### Tip Calculator App Instructions **Initial Display Settings:** When you start the Tip Calculator App, the screen should display the following initial settings: - **Total Amount Text Box:** Set to 0.00 - **Tax Amount Text Box:** Set to 0.00 - **Radio Button:** 0% is selected - **Tip Amount Display:** Set to 0.00 - **Grand Total Display (Total Amount + Tax Amount + Tip Amount):** Set to 0.00 **Button Functionalities:** 1. **Clear Button:** - Reset the text box for entering the total amount to 0.00 - Reset the text box for entering the tax amount to 0.00 - Ensure the 0% radio button is selected - Reset the tip amount display to 0.00 - Reset the grand total display to 0.00 2. **Calculate Button:** - Retrieve data from the total amount text box - Retrieve data from the tax amount text box - Determine the tip percentage from the selected radio button - Calculate the tip amount using the formula: `Tip Amount = Total Amount * Tip Percentage` - Calculate the grand total using the formula: `Grand Total = Total Amount + Tax Amount + Tip Amount` - Display results using the appropriate text views **Note:** Ensure all numbers are formatted properly.
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