Multi-dimensional arrays that contain arrays of different lengths in any one dimension are called _________________.
a) ragged arrays
b) static arrays
c) two-dimensional arrays
d) constant arrays
e) overloaded arrays
a) ragged arrays
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What will be the value of totalIncome after the following values are read from the file?
2.5 8.5 3.0 5.5 abc 1.0 ``` In the following code, assume that inputFile references a Scanner object that has been successfully used to open a file: double totalIncome = 0.0; while (inputFile.hasNext()) { try { totalIncome += inputFile.nextDouble(); } catch(InputMismatchException e) { System.out.println("Non-numeric data encountered " + "in the file."); inputFile.nextLine(); } finally { totalIncome = 35.5; } } ``` a. 19.5. b. 0.0 c. 35.5 d. 75.0
Symmetric encryption algorithms use one key for both encryption and decryption.
Answer the following statement true (T) or false (F)
Search engines are used to __________. (Choose all that apply.)
survey the Web and build their Web page databases examine many documents on the Web find information from only one specific source secretly write programs
Which is not true about point-to-point circuits?
a. point-to-point circuits are dedicated to the use of the two computers. b. point-to-point circuits are more expensive than multipoint circuits. c. point-to-point circuits are called dedicated circuits. d. point-to-point circuits reduce the amount of cable required and use the circuit more efficiently than multipoint circuits. e. point-to-point circuits are used when the computers generate enough traffic to fill the capacity of the communication circuit.