Why should you utilise an Open and/or Save As dialogue box in an application that deals with files? What are the benefits of doing so?
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- How does assigning an access key to a button change the button’s appearance?Print Receipt Button Coding.When the user click on the Print button/menuitem/contextmenuitem, the appwill allow him/her to print out the receipt2. (Temperature Conversion) Write a temperature-conversion application that converts from Fahrenheit to Celsius. The Fahrenheit temperature should be entered from the keyboard (via a JTextField). A JLabel should be used to display the converted temperature. Use the following formula for the conversion: Celsius = × (Fahrenheit – 32)
- The property on the majority of controls determines whether the control is shown on the form during runtime.The Megawatt Solar Panel Company installs solar panels on home rooftops. The base installation charge of $2,000 includes two panels. The charge for each additional panel is $300. The normal waiting time for installation is two weeks, but customers can pay an express charge of 5% of the total cost to reduce this time. Create an application that collects the required information from the user and calculates the charges for the installation.The outcome of an application's computation should be saved in a variable. True or False?
- What is the benefit of using an Open and/or Save As dialog box in an application that works with files?In Chapter 2, you created an interactive application named GreenvilleRevenue, and in Chapter 3 you created a GUI version of the application named GreenvilleRevenueGUI. The programs prompt a user for the number of contestants entered in this years and last years Greenville Idol competition, and then they display the revenue expected for this years competition if each contestant pays a $25 entrance fee. The programs also display a statement that compares the number of contestants each year. Now, replace that statement with one of the following messages: If the competition has more than twice as many contestants as last year, display The competition is more than twice as big this year! If the competition is bigger than last years but not more than twice as big, display The competition is bigger than ever! If the competition is smaller than last years, display, A tighter race this year! Come out and cast your vote!For each of the following exercises, you may choose to write a console-based or GUI application, or both. Write a program for The Carefree Resort named ResortPrices that prompts the user to enter the number of days for a resort stay. Then display the price per night and the total price. Nightly rates are $200 for one or two nights; $180 for three or four nights; $160 for five, six, or seven nights; and $145 for eight nights or more.