Which of the following protocols should a technician consider troubleshooting if a user is not receiving incoming emails on their desktop?
A. SMTP
B. POP3
C. FTP
D. SIP
Answer: B. POP3
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Which of the following components allows the user to select one of several options from a "drop down" menu?
a) check boxes b) radio buttons c) sliders d) combo boxes e) none of the above
Feature that enables you to choose border formatting and click on any table border to apply the formatting.
What will be an ideal response?
When describing a system, explain why you may have to design the system architecture before the requirements specification is complete.
What will be an ideal response?
The Factorial application calculates the factorial of an integer input by the user. The factorial of an integer is the product of each integer from one to that integer. For example, the factorial of 3—represented in mathematics as 3!— is 6 (1 2 3). While testing the application, you notice that it does not execute correctly. Use the debugger to find and correct the logic error(s) in the application. Figure 9.26 displays the correct out- put for the Factorial application.
5
a) Copying the template to your working directory. Copy the C:Examples Tutorial09ExercisesDebuggerFactorial directory to your C:SimplyJava directory.
b) Opening the Command Prompt window and changing directories. Open the Com- mand Prompt window by selecting Start > Programs > Accessories > Command Prompt. Change to your working directory by typing cd C:SimplyJavaDebug- gerFactorial.
c) Running the application. Run the Factorial application by typing java Factorial.
Enter the value 3 into the Enter number: JTextField and press the Calculate JBut- ton. Notice that the result displayed in the Factorial: JTextField (0) is not the cor- rect value (6).
d) Closing the application. Close your running application by clicking its close button. e) Compiling with the -g option. For debugging, compile the application by typing
javac -g Factorial.java.
f) Starting the debugger. Start the debugger by typing jdb.
g) Opening the template file. Open the Factorial.