Answer:
C. 22
Explanation:
Given that the argument is being passed by value, there is no memory to consider. So cookieJar(7) returns 7 and cookieJar(22) returns 22.
If the argument parameter was passed by reference or pointer, then perhaps the value from cookieJar(7) would be considered with cookieJar(22).
Note, this code block really isn't doing anything other than returning the value passed into it. The "amount" variable is immediately set to 0, and then the value passed in is added to amount (which is 0), and returns. The following code could replace this function:
public static int cookieJar(int addCookies){
return addCookies;
}
The above code will return an equivalent output to the given code.
Notice, the function is not dependent on any previous call, so the value for each is unique to the call itself, i.e., cookieJar(22) returns 22 and cookieJar(7) returns 7.
So, C. 22 would be correct.
Answer:
In computer memory, zero(0) represents the absence of an electric signal and 1 represents the presence of an electric signal.
Explanation:
Computer memory is used to store data in the form of electrical signals. Electrical signal is used to represent the presence or absence of signal. The data is stored in binary form.
Hence,
In computer memory, zero(0) represents the absence of an electric signal and 1 represents the presence of an electric signal.
Answer:
F1 – Opens the Help screen for almost every program.
F2 – Allows you to rename a selected file or folder.
F3 – Opens a search feature for an application that is active at the moment.
F4 – Alt + F4 closes the active window.
F5 – Allows you to refresh or reload the page or document window.
F6 – Moves the cursor to the address bar in most Internet browsers.
F7 – Used to spell check and grammar check a document in Microsoft Apps (e.g. Word).
F8 – Used to access the boot menu in Windows when turning on the computer.
F9 – Refreshes a document in Microsoft Word and sends and receives emails in Outlook.
F10 – Activates the menu bar of an open application. Shift + F10 is the same as right clicking.
F11 – Enters and exits full screen mode in Internet browsers.
F12 – Opens the Save As dialog box in Microsoft Word.
Answer:
Procedural abstraction is a method in which all sub tasks of a whole functionality must be created separately as method and each method/ procedure must be performing a distinct functionality. For example if we want to write a program to calculate and display result of students in class and create separate methods to get students record, to calculate grades to display results is a procedural abstraction approach. Here not only the methods created have distinctive function the administrative can vary the level of abstraction as well.
It is important in computer science for the following ways:
1) Increase the level of code readiness as all separate functionality tasks will have a separate methods.
2) Prevents unauthorized of data.