Big Java, Binder Ready Version: Early Objects
6th Edition
ISBN: 9781119056447
Author: Cay S. Horstmann
Publisher: WILEY
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Chapter 5.5, Problem 24SC
Program Plan Intro
Java:
- The Java is a
programming language used to create general-purpose programs. - The Java is based on class, and object oriented model.
- The java language is famous for its platform independent property. That is once java program compiled, it can be run in any platform (
Operating System ). - Java program help the developer to design programs with less dependencies. The compiled java program can run on any platform that supports java.
Machine code:
- The machine code is a computer program written using machine language or assembly language.
- The machine code has a set of instructions that are executed by the central processing unit (CPU) directly.
- The machine language is made to be run as fast as possible.
- The machine code instructs the central processing unit to do specific actions like, a load, a store or an arithmetic logic unit (ALU) operation.
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Students have asked these similar questions
Whentheuserenters!!,themostrecentcommandinthehistoryisexecuted.In the example above, if the user entered the command:
Osh> !!
The ‘ls -l’ command should be executed and echoed on user’s screen. The command should also be placed in the history buffer as the next command.
Whentheuserentersasingle!followedbyanintegerN,theNthcommandin the history is executed. In the example above, if the user entered the command:
Osh> ! 3
The ‘ps’ command should be executed and echoed on the user’s screen. The command should also be placed in the history buffer as the next command.
Error handling:
The program should also manage basic error handling. For example, if there are no commands in the history, entering !! should result in a message “No commands in history.” Also, if there is no command corresponding to the number entered with the single !, the program should output "No such command in history."
Activity No.
Activity
Time (weeks)
Immediate Predecessors
1
Requirements collection
3
2
Requirements structuring
4
1
3
Process analysis
3
2
4
Data analysis
3
2
5
Logical design
50
3,4
6
Physical design
5
5
7
Implementation
6
6
c. Using the information from part b, prepare a network diagram. Identify the critical path.
2. UNIX Shell and History Feature [20 points]
This question consists of designing a C program to serve as a shell interface that
accepts user commands and then executes each command in a separate process. A
shell interface gives the user a prompt, after which the next command is entered.
The example below illustrates the prompt osh> and the user's next command:
cat prog.c. The UNIX/Linux cat command displays the contents of the file
prog.c on the terminal using the UNIX/Linux cat command and your program
needs to do the same.
osh> cat prog.c
The above can be achieved by running your shell interface as a parent process.
Every time a command is entered, you create a child process by using fork(),
which then executes the user's command using one of the system calls in the
exec() family (as described in Chapter 3). A C program that provides the general
operations of a command-line shell can be seen below.
#include
#include
#define MAX LINE 80 /* The maximum length command */
{
int…
Chapter 5 Solutions
Big Java, Binder Ready Version: Early Objects
Ch. 5.1 - In some Asian countries, the number 14 is...Ch. 5.1 - Consider the following if statement to compute a...Ch. 5.1 - Prob. 3SCCh. 5.1 - Prob. 4SCCh. 5.1 - The variables fuelAmount and fuelCapacity hold the...Ch. 5.2 - Prob. 6SCCh. 5.2 - Prob. 7SCCh. 5.2 - Prob. 8SCCh. 5.2 - Prob. 9SCCh. 5.2 - Prob. 10SC
Ch. 5.2 - Prob. 11SCCh. 5.3 - Prob. 13SCCh. 5.3 - Prob. 14SCCh. 5.3 - Prob. 15SCCh. 5.3 - Prob. 16SCCh. 5.3 - Suppose the user enters -1 into the earthquake...Ch. 5.3 - Suppose we want to have the earthquake program...Ch. 5.4 - Prob. 19SCCh. 5.4 - Prob. 20SCCh. 5.4 - Prob. 21SCCh. 5.4 - Prob. 22SCCh. 5.4 - Prob. 23SCCh. 5.5 - Prob. 24SCCh. 5.5 - Prob. 25SCCh. 5.5 - Prob. 26SCCh. 5.5 - Prob. 27SCCh. 5.5 - Prob. 28SCCh. 5.6 - Prob. 29SCCh. 5.6 - Prob. 30SCCh. 5.6 - Prob. 31SCCh. 5.6 - Prob. 32SCCh. 5.7 - Prob. 33SCCh. 5.7 - Prob. 34SCCh. 5.7 - Prob. 35SCCh. 5.7 - Prob. 36SCCh. 5.7 - Prob. 37SCCh. 5.8 - In the ElevatorSimulation2 program, what is the...Ch. 5.8 - Prob. 39SCCh. 5.8 - Prob. 40SCCh. 5.8 - Prob. 41SCCh. 5 - Prob. 1RECh. 5 - Explain the difference between
s - o;
if (x > o) {...Ch. 5 - Prob. 3RECh. 5 - What do these code fragments print?
int n - 1;
int...Ch. 5 - Suppose x and y are variables of type double....Ch. 5 - Suppose x and y are variables of type double....Ch. 5 - Explain why it is more difficult to compare...Ch. 5 - Given two pixels on a computer screen with integer...Ch. 5 - It is easy to confuse the - and – operators. Write...Ch. 5 - Prob. 11RECh. 5 - In a scheduling program, we want to check whether...Ch. 5 - Prob. 13RECh. 5 - Prob. 14RECh. 5 - Prob. 15RECh. 5 - Prob. 16RECh. 5 - Prob. 17RECh. 5 - Prob. 18RECh. 5 - Prob. 19RECh. 5 - Prob. 20RECh. 5 - Prob. 21RECh. 5 - Prob. 22RECh. 5 - Prob. 23RECh. 5 - Prob. 24RECh. 5 - Prob. 25RECh. 5 - Prob. 26RECh. 5 - Prob. 27RECh. 5 - Prob. 28RECh. 5 - Prob. 29RECh. 5 - Prob. 30RECh. 5 - Prob. 31RECh. 5 - Prob. 32RECh. 5 - Prob. 33RECh. 5 - Prob. 1PECh. 5 - Prob. 2PECh. 5 - Prob. 3PECh. 5 - Prob. 4PECh. 5 - Prob. 5PECh. 5 - Prob. 6PECh. 5 - Prob. 7PECh. 5 - Write a program that reads four integers and...Ch. 5 - Prob. 9PECh. 5 - Prob. 10PECh. 5 - Prob. 11PECh. 5 - The boiling point of water drops by about one...Ch. 5 - Prob. 13PECh. 5 - Prob. 14PECh. 5 - Prob. 15PECh. 5 - Prob. 16PECh. 5 - Prob. 17PECh. 5 - The original U.S. income tax of 1913 was quite...Ch. 5 - Prob. 19PECh. 5 - Prob. 20PECh. 5 - Prob. 21PECh. 5 - Prob. 22PECh. 5 - Prob. 23PECh. 5 - Prob. 24PECh. 5 - Prob. 25PECh. 5 - Prob. 1PPCh. 5 - Write a program that computes taxes for the...Ch. 5 - Prob. 3PPCh. 5 - Unit conversion. Write a unit conversion program...Ch. 5 - Write a program that reads in the x and...Ch. 5 - Prob. 6PPCh. 5 - Write a program that reads in the x-and...Ch. 5 - A year with 366 days is called a leap year. Leap...Ch. 5 - Roman numbers. Write a program that converts a...Ch. 5 - Prob. 10PPCh. 5 - Prob. 11PPCh. 5 - When you use an automated teller machine (ATM)...Ch. 5 - Prob. 13PPCh. 5 - Prob. 14PPCh. 5 - Prob. 15PPCh. 5 - Prob. 16PPCh. 5 - A minivan has two sliding doors. Each door can be...Ch. 5 - Prob. 18PPCh. 5 - Prob. 19PPCh. 5 - Prob. 20PPCh. 5 - Prob. 21PPCh. 5 - Prob. 22PPCh. 5 - Prob. 23PP
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