The programs used by the computer to control and maintain hardware and to communicate with the user are:
a. applications software
b. browsers
c. shareware
d. system software
D
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Which of the following statements regarding abstract methods is false?
a. An abstract class can have instances created using the constructor of the abstract class. b. An abstract class can be extended. c. A subclass of a non-abstract superclass can be abstract. d. A subclass can override a concrete method in a superclass to declare it abstract. e. An abstract class can be used as a data type.
Analyze the following code:
``` public class Test { public static void main(String[] args) { try { String s = "5.6"; Integer.parseInt(s); // Cause a NumberFormatException int i = 0; int y = 2 / i; } catch (Exception ex) { System.out.println("NumberFormatException"); } catch (RuntimeException ex) { System.out.println("RuntimeException"); } } } ``` a. The program displays NumberFormatException. b. The program displays RuntimeException. c. The program displays NumberFormatException followed by RuntimeException. d. The program has a compile error.
A white space detected during numeric input .
a. is ignored b. terminates the reading of the current numeric input value c. causes the program to skip to the next line of code d. causes the program to skip to the next line of data e. causes the program to crash
The
tag is used to indicate ____.
A. the text should be brown B. the ideal browser version C. a manual line break D. the text should be brightened