perl script(very urgent 1 hr left for 3 small perl scripts)
Required skills: Perl
CH10HW1
The factorial of a nonnegative integer n is written as n! and is defined as follows:
n! = n * (n-1) * (n-2) * ... * 1 ( for values of n greater than or equal to 1
and
n! = 1 (for n = 0)
For example, 5! = 5 * 4 * 3 * 2 *1 (which is 120).
Write a program that reads a nonnegative integer and uses a foreach construct to compute and print its factorial.
----------------------------------------------------------------
CH12hw1
Review: Full, Anonymous: No
Write a Perl script that will use assign interger values to each of two variables.
The program should swap the values in the variables without using any additional variables to temporarily hold either of the values.
HINT: Use the bitwise exclusive or operator to complete this assignment
----------------------------------------------------------------------------------------
proj2
Write a program that will keep track of expense information in a file. The file is the expenses.txt file that can be found in this folder
The user of the application should be allowed to:
* · Update the expense amount for an item
* · Get a report on a particular category
* · Get a total of all expenses
You should print a menu and prompt the user to enter a choice. If appropriate, based on the choice, it should ask for the category and the amount.
NOTE: since this is an expense file, you should be able to add new values to the existing category expense as found in the file
What's Next?
http://dl.dropbox.com/u/2852409/project2.pl
Write a program that will keep track of expense information in a file. The file is the expenses.txt file that can be found in this folder
The user of the application should be allowed to:
•· Update the expense amount for an item
•· Get a report on a particular category
•· Get a total of all expenses
You should print a menu and prompt the user to enter a choice. If appropriate, based on the choice, it should ask for the category and the amount.
#!/usr/bin/perl -w
print "-------------------------------n";
print "| Expense Worksheet |n";
print "-------------------------------n";
open expwk, "expense.txt";
while(my $ exps = <expwk>)
{
@expspt = split(/:/, $ exps);
print "t@expspt[0]:";
print "@expspt[1]n";
}
print "Press 'U' To Update Category,";
print "'R' for Report,";
print "'T' for Total,";
print "and Q to Quit:";
$ opt = <STDIN>;
if($ opt=~/^u/i){
&upcat();
print "n";
}
elsif($ opt=~/^r/i){
&report();}
elsif($ opt=~/^t/i){
&total();}
else
{
print "nyou have entered an invalid optionn";
}
sub upcat{
print "Please Select Category For Update:";
$ updtcat = <STDIN>;
if($ updtcat=~/food/i){
print "nPlease Enter New Amount Below:n";
$ updtamt=<>;
return $ updtamt;
}
#elsif($ updtcat=~/books/i){
#print "nPlease Enter New Amount Below:n";
#$ updtamt=<>;
#return $ updtamt;
#}
elsif($ updtcat=~/clothes/i){
print "nPlease Enter New Amount Below:n";
$ updtamt=<>;
return $ updtamt;
}
elsif($ updtcat=~/^car/i){
print "nPlease Enter New Amount Below:n";
$ updtamt=<>;
return $ updtamt;
}
elsif($ updtcat=~/gas/i){
print "nPlease Enter New Amount Below:n";
$ updtamt=<>;
return $ updtamt;
}
elsif($ updtcat=~/movies/i){
print "nPlease Enter New Amount Below:n";
$ updtamt=<>;
return $ updtamt;
}
elsif($ updtcat=~/music/i){
print "nPlease Enter New Amount Below:n";
$ updtamt=<>;
return $ updtamt;
}
else{
print "You Have Entered Invalid Selection";
}
}
sub report(){
}
sub total(){
}
The factorial of a nonnegative integer n is written as n! and is defined as follows:
n! = n * (n-1) * (n-2) * ... * 1 ( for values of n greater than or equal to 1
and
n! = 1 (for n = 0)
For example, 5! = 5 * 4 * 3 * 2 *1 (which is 120).
Write a program that reads a nonnegative integer and uses a foreach construct to compute and print its factorial.
----------------------------------------------------------------
CH12hw1
Review: Full, Anonymous: No
Write a Perl script that will use assign interger values to each of two variables.
The program should swap the values in the variables without using any additional variables to temporarily hold either of the values.
HINT: Use the bitwise exclusive or operator to complete this assignment
----------------------------------------------------------------------------------------
proj2
Write a program that will keep track of expense information in a file. The file is the expenses.txt file that can be found in this folder
The user of the application should be allowed to:
* · Update the expense amount for an item
* · Get a report on a particular category
* · Get a total of all expenses
You should print a menu and prompt the user to enter a choice. If appropriate, based on the choice, it should ask for the category and the amount.
NOTE: since this is an expense file, you should be able to add new values to the existing category expense as found in the file
What's Next?
http://dl.dropbox.com/u/2852409/project2.pl
Write a program that will keep track of expense information in a file. The file is the expenses.txt file that can be found in this folder
The user of the application should be allowed to:
•· Update the expense amount for an item
•· Get a report on a particular category
•· Get a total of all expenses
You should print a menu and prompt the user to enter a choice. If appropriate, based on the choice, it should ask for the category and the amount.
#!/usr/bin/perl -w
print "-------------------------------n";
print "| Expense Worksheet |n";
print "-------------------------------n";
open expwk, "expense.txt";
while(my $ exps = <expwk>)
{
@expspt = split(/:/, $ exps);
print "t@expspt[0]:";
print "@expspt[1]n";
}
print "Press 'U' To Update Category,";
print "'R' for Report,";
print "'T' for Total,";
print "and Q to Quit:";
$ opt = <STDIN>;
if($ opt=~/^u/i){
&upcat();
print "n";
}
elsif($ opt=~/^r/i){
&report();}
elsif($ opt=~/^t/i){
&total();}
else
{
print "nyou have entered an invalid optionn";
}
sub upcat{
print "Please Select Category For Update:";
$ updtcat = <STDIN>;
if($ updtcat=~/food/i){
print "nPlease Enter New Amount Below:n";
$ updtamt=<>;
return $ updtamt;
}
#elsif($ updtcat=~/books/i){
#print "nPlease Enter New Amount Below:n";
#$ updtamt=<>;
#return $ updtamt;
#}
elsif($ updtcat=~/clothes/i){
print "nPlease Enter New Amount Below:n";
$ updtamt=<>;
return $ updtamt;
}
elsif($ updtcat=~/^car/i){
print "nPlease Enter New Amount Below:n";
$ updtamt=<>;
return $ updtamt;
}
elsif($ updtcat=~/gas/i){
print "nPlease Enter New Amount Below:n";
$ updtamt=<>;
return $ updtamt;
}
elsif($ updtcat=~/movies/i){
print "nPlease Enter New Amount Below:n";
$ updtamt=<>;
return $ updtamt;
}
elsif($ updtcat=~/music/i){
print "nPlease Enter New Amount Below:n";
$ updtamt=<>;
return $ updtamt;
}
else{
print "You Have Entered Invalid Selection";
}
}
sub report(){
}
sub total(){
}
Posted In:Perl |
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