A MouseHandler object implements which two interfaces?
a. MouseListener and MouseActionListener.
b. MouseListener and MouseMotionListener.
c. MouseListener and MouseEventListener.
d. MouseListener only.
b. MouseListener and MouseMotionListener.
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The following code containing a loop attempts to find how many times the letter ‘r’ appears in a string. But something is wrong with the loop. How would you fix it?
String s = “railroad”; int count = 0; char letter = s.charAt(index); for (int index = 0; index < s.length(); ++index) if (letter == ‘r’) ++count;
Identify the letter of the choice that best matches the phrase or definition.
A. Select cells using the keyboard. B. Copies a formula. C. Applies the Currency style with a floating dollar sign and two decimal places. D. Wraps text in a cell. E. Spell-checking a worksheet. F. Manually recalculates formulas. G. Pastes a formula. H. Opens the Format Cells dialog box. I. An invalid cell reference in a formula. J. Displays the worksheet with formulas.
The file extension for an Excel Macro-Enabled Workbook is .xltm.
Answer the following statement true (T) or false (F)
DoS attacks are rare against wired network servers.
Answer the following statement true (T) or false (F)