null can be used:
a. to indicate a variable has no real value
b. in a Boolean expression with ==
c. as a placeholder
d. all of the above
D
Computer Science & Information Technology
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What is the output of the following code?
``` String s = "University"; s.replace("i", "ABC"); System.out.println(s); ``` a. UnABCversity b. UnABCversABCty c. UniversABCty d. University
Computer Science & Information Technology
Which Windows 7 Control Panel is used to configure the firewall?
A) Network Connections B) System and Security C) Hardware D) Computer Safety
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Any device with an IP address is a host.
True False
Computer Science & Information Technology
Why does spaghetti code have a shorter shelf life than structured code?
What will be an ideal response?
Computer Science & Information Technology