The fflush() function breaks the link between the file's external and internal names, releasing the internal file pointer name, which can then be used for another file.
Answer the following statement true (T) or false (F)
False
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Assume that you have a document with many subsections. Write the HTML markup to create a frame with a table of contents on the left side of the window, and have each entry in the table of contents use internal linking to scroll down the document frame to the appropriate subsection.
What will be an ideal response?
(Class Average Application That Handles Any Number of Grades) Modify the original Class Average application to handle any number of grades. When the user clicks the Get Grades JButton, an input dialog will ask the user to input the number of grades to be entered. The application should execute as it did in the test-drive , except that each time the Get Grades JButton is clicked the input dialog will appear as many times as the number of grades the user wishes to enter.
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a) Copying the template to your working directory. Copy the directory C:Examples Tutorial09ExercisesClassAverageAnyNumberOfGrades to your C:SimplyJava directory.
b) Opening the template file. Open the ClassAverage.java file in your text editor.
c) Declaring an instance variable. Add code in line 26 that declares int variable
limit. This variable will store the number of grades the user wishes to enter.
d) Modifying the getGradesJButtonActionPerformed event handler. Add code in lines 130–131 (before the do…while statement) that will display an input dialog for the user. Use two lines for readability. Set the text displayed in the input dialog to “How many grades will be entered?”. Assign the result of this input dialog to vari- able input. Add code in line 132 that will convert the value of input to an integer, and assign the result to the instance variable limit.
e) Modifying the do…while statement in getGradesJButtonActionPerformed. Mod- ify th
What is the difference between a scenario and a use case? When do you use each construct?
What will be an ideal response?
To harden a system you should shut down any services that are not used
Indicate whether the statement is true or false.