Answer the following statements true (T) or false (F)
1. Each UNIX process has its own system data segment containing data needed by the
operating system when the process is active.
2. The UNIX fork utility duplicates only the executing process’s text and data segments.
3. Because the UNIX fork utility’s return code is positive, the parent normally calls wait,
and waits for the child to die or finish processing.
4. Because the UNIX fork utility’s return code is 0, the parent calls another system
primitive, exec, which responds by overlaying the parent’s text and data segments with
the contents of a new file
5. UNIX supports serial and parallel processes with remarkable consistency, one reason
why professional programmers find it so elegant.
1. T
2. F
3. T
4. F
5. T
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Write a program that creates Pet objects from data read from the keyboard. Store these objects into an instance of ArrayList. Then sort the Pet objects into alphabetic order by pet name, and finally display the data in the sorted Pet objects on the screen. The class Pet is given in Chapter 6, Listing 6.1.
This Project has the potential for being more difficult than the Practice Programs since it uses a list of elements other than Strings, which the author states can lead to subtle problems. The PetRecord variable nextPet must be declared inside the while-loop so it is created fresh each iteration. It must be redeclared each time to ensure that PetRecords previously added to the list are not overwritten with data entered on the next iteration. If nextPet is created only once, outside the while-loop (before entering it), the new values entered are written to same address each time and all the PetRecords in the list will end up with identical data, the values entered in the last iteration.
A(n) ________ constraint does not restrict the target that Solver finds
Fill in the blank(s) with correct word
Which item in the accompanying figure is an input device?
A. 1 B. 2 C. 3 D. 4
The ____________________ data type in the Function declaration specifies the type of data type that will be passed back to the calling procedure.
Fill in the blank(s) with the appropriate word(s).