The device that allows two different networks to communicate with one another is:
A. a repeater
B. a hub
C. a router
D. an access point
Answer: C. a router
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Modify the general copy method copyPictureTo in Chapter 5 to stop looping if it is past the width of either the source picture or the current picture.
What will be an ideal response?
Which of the following functions searches a string for a substring and returns an index of the found substring if it is found?
a) Len b) Left c) Instr d) Filter
Modify the application you developed in Exercise 11.11 to allow the user to input the price of the items and the sales commission percentage. The user enters the number of items sold and the price of items and the gross sales is calculated from this. The commission percentage will be in the range 1 to 10 inclusive. The user has been provided with a JSpinner to choose the commission percentage (Fig. 13.25). When the value in the JSpinner changes, the calculated earnings should automatically be updated.
a) Copying the template to your working directory. Copy the C:Examples Tutorial13ExercisesSalesCommissionCalculator2 directory to your C:Sim- plyJava directory.
b) Opening the template file. Open the SalesCommissionCalculator.java file in your text editor.
c) Completing the stateChanged event handler for commissionJSpinner. On line 107, add code to call method commissionJSpinnerStateChanged. Pass to the method the ChangeEvent object event as the argument.
d) Coding the commissionJSpinnerStateChanged method. Starting after method calculateEarnings, on line 174, declare method commissionJSpinnerState- Changed. This method should call method calculateEarnings. Method calcula- teEarnings has already been declared for you.
e) Completing the actionPerformed event handler for calculateJButton. On line
139, add code to call method calculateJButtonActionPerformed. Pass to the
method the ActionEvent object event as the argument.
f) Coding the ca
Match the device to its description
I. Test access port A. Repeats any and all data II. Hub B. Duplicates data on any port and forwards it to the NFAT III. WAP C. Transmits and receives RF IV. SPAN D. Used like a cable splice