Well Formatted Question:
The _______ of the operating system enables users to communicate with the computer system.
a) modem
b) window
c) network adapter card
d) user interface
Answer:
(d) user interface.
Explanation:
A user interface acts as a middleman between the user of a computer and the operating system of that computer. With the user interface, a user can easily communicate with the computer system including the applications running on it.
The user interface can either be text-based or graphics-based.
With text-based user interface, the user enters commands (using keyboards) in form of texts basically on the command line and then the operating system executes these commands.
With the graphical user interface, users interact with the computer using graphics-like control items such as buttons and menus to give instructions to the computer.
Answer:
public static boolean beginsWithZ(String word){
if(string == null || string.length() == 0)
return 0;
if(word.charAt(0) == 'Z' || word.charAt(0) == 'z')
return 1;
else
return 0;
}
Explanation:
This method is a boolean method, meaning it returns true if the string begins with Z or z and false otherwise. So:
The Java command charAt() let's you find the character at each position of the string, so i use it.
public static boolean beginsWithZ(String word){
if(string == null || string.length() == 0)
return 0;
if(word.charAt(0) == 'Z' || word.charAt(0) == 'z')
return 1;
else
return 0;
}
Answer:
online display advertisement
Explanation:
Q:
Glenda is searching airline schedules on HolApp, a mobile Web application. While browsing …
A. online display advertisement
B. contextual advertisement...
A:
A
There are ones for smart people andones that want to lay sports and small colleges.
Hoi!
The correct answer is "A lifestream is a time ordered stream of documents that acts as a user's online diary."
Lifestreaming documents and shares daily moments of someone's online life. :)