Which directory under the /usr/ directory includes source files of all programs and the kernel?
A. /usr/X11R6/
B. /usr/bin/
C. /usr/sbin/
D. /usr/src/
Answer: D
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In object-oriented programming, a(n) __________ is a module or function that performs a specific task.
Fill in the blank(s) with the appropriate word(s).
A(n) ____________________ is an alert window that briefly appears in your screen to remind you of an upcoming appointment.
Fill in the blank(s) with the appropriate word(s).
Which of the following is NOT a type of entry found in a routing table?
A. default routes B. static routes C. dynamic routes D. backup routes
Write an application that performs various temperature conversions. The application should be capable of performing two types of con- versions: degrees Fahrenheit to degrees Celsius and degrees Celsius to degrees Fahrenheit. Your output should look like Fig. 13.24.
The conversion should take place when the user enters a temperature in one of the JTextFields and presses Enter. Pressing Enter while the focus is on a JTextField generates an ActionEvent and calls event handler actionPerformed.
a) Copying the template to your working directory. Copy the C:Examples Tutorial13ExercisesTemperatureConversion2 directory to your C:Simply- Java directory.
b) Opening the template file. Open the TemperatureConversion.java file in your text editor.
c) Completing the actionPerformed event handler for fahrenheitJTextField. On line 57, add code to call method fahrenheitJTextFieldActionPerformed. Pass to the method the ActionEvent object event as the argument.
d) Coding the fahrenheitJTextFieldActionPerformed method. Starting after the createUserInterface method, on line 97, declare the fahrenheit- JTextFieldActionPerformed method. This method should get the value from fahrenheitJTextField, convert it to Celsius and display it in