|
Member 10063234 wrote: still don't understand it
How would I know what it is that you do not understand?
Do you not understand what an array is? Do you not understand how to access an element in an array? For your example, combo is string array yes? To access your first element in the array you need to supply the index of the element that you want to access i.e. combo[0] would let you access the first string of the array. To access the second element, you would need to access index 1, combo[1]. Unless your textbook is the worst book programming book in the universe, this information is in there. When you wrote combo[], you are referring to the entire array and a string array does not have a Substring method, hence your error. An individual string has a Substring method.
|
|
|
|
|
|
In addition to the errors ThePhantomUpvoted has mentioned, you also need to look at what you are doing with the data, when you have corrected the problem he describes. Why are you converting data to character? What you are writing here:
string name = Convert.ToChar(combo[].Substring(0, 7));
Is the equivalent of
string name = Convert.ToChar("Widget ");
Which is silly: a string is made up of a number of characters (think of it as an array of characters), so you take a string, convert it to a character - which is a silly idea all on it's own - and then try to store the character into a string again!
Take a deep breath, step away from the keyboard and think about what you are trying to do. Then ignore you code for a moment, and use a piece of paper and a pencil to work out exactly how you would do this yourself. When you have that, you should be ready to look at your instructions and work out what to do.
They are quite explicit:
Create a void method that will accept as arguments the two arrays of strings and the array of doubles when called from Main. Does your parse method do exactly that?
The universe is composed of electrons, neutrons, protons and......morons. (ThePhantomUpvoter)
|
|
|
|
|
if all you need to do is print to the screen:
Member 10063234 wrote: Widget $15.50
Thingy $50.99
Ratchet $25.00
Clanger $115.49
Fracker $75.25
I can see this being done with two arrays… One string array and one int array.
I'm also trying to learn C#, most of the people here usually pretty good about helping you understand and learn what things do in this programming language.
They won't rewrite your code or do your homework for you… I on the other hand, would like to take a shot at writing this… It will give me an excuse to practice writing code myself…
As long as you're just looking for something for that simple output, I will post my code…
If you're supposed to be writing it in a certain way, then I won't post.
|
|
|
|
|
Hi
I want to write a client to client chat program by c#;before i wrote client/server chat program ,how can i convert it
thank you all
|
|
|
|
|
How in the hell is anyone supposed to answer this question seeing as we know absolutely NOTHING about the code you've written?
|
|
|
|
|
Search on the internet and you will find tons of such programs. Use them as a guide for your conversion.
If you run into issues, post specific questions here and someone might be able to help you.
|
|
|
|
|
I have this assignment with arrays and I'm totally lost. I'm ready to drop out of the class because it is too hard for me. I just want to finish the class and not fail.
Develop a C# console application that implements two parallel arrays in Main, one to hold double values called item_price and the other to hold strings called item_name. Each array will hold 5 values. Use an initializer to fill the item_price array with the values 15.50, 50.99, 25.00, 115.49, 75.25. Use an initializer to fill the item_name array with the values "Widget", "Thingy", "Ratchet", "Clanger", "Fracker". This application will use a method to change the corresponding prices for items based on a price point and a multiplier which will require double value types. The inputs for the price and multiplier are input from the console.
Create two static methods, one called changePrices and one called printit. When the changePrices method is called from Main you should pass the item_price array by reference, the price point and price difference values input from the console to it. The changePrices method should loop through the item price array and check the price point to determine the increase in price for each price array element.
|
|
|
|
|
Member 10063234 wrote: the price point and price difference values input from the console to it. The changePrices method should loop through the item price array and check the price point to determine the increase in price for each price array element.
What does that even mean?
|
|
|
|
|
That is what I said. This is the whole assignment and I'm totally lost. I've read the chapter over and over again.
Develop a C# console application that implements two parallel arrays in Main, one to hold double values called item_price and the other to hold strings called item_name. Each array will hold 5 values. Use an initializer to fill the item_price array with the values 15.50, 50.99, 25.00, 115.49, 75.25. Use an initializer to fill the item_name array with the values "Widget", "Thingy", "Ratchet", "Clanger", "Fracker". This application will use a method to change the corresponding prices for items based on a price point and a multiplier which will require double value types. The inputs for the price and multiplier are input from the console.
Create two static methods, one called changePrices and one called printit. When the changePrices method is called from Main you should pass the item_price array by reference, the price point and price difference values input from the console to it. The changePrices method should loop through the item price array and check the price point to determine the increase in price for each price array element. The basic computation is:
if the current price is less than the price point then set the price equal to the current price plus the current price times the price multiplier
In the printit method print the item name and the corresponding item price to the console as shown in the output example below.
The price for item Widget is $15.50
The price for item Thingy is $50.99
The price for item Ratchet is $25.00
The price for item Clanger is $115.49
The price for item Fracker is $75.25
Enter the price cutoff point (eg $15.00) $60.00
Enter the percentage price change (eg 0.25) 0.15
The price for item Widget is $17.83
The price for item Thingy is $58.64
The price for item Ratchet is $28.75
The price for item Clanger is $115.49
The price for item Fracker is $75.25
Press any key to continue . . .
|
|
|
|
|
Ok, now it makes sense. What do you have so far?
|
|
|
|
|
using System;
public class InitArray
{
public InitArray()
{
string[] name = {"Widget", "Thingy", "Ratchet", "Clanger", "Fracker"};
double[] price = {15.50, 50.99, 25.00, 115.49, 75.25};
|
|
|
|
|
Hi Alll
Please Anybody have code or knowledge about this question please send me give solution.
thanking you for supporting me. 
Pankaj Tak
|
|
|
|
|
Not enough information. What printer and attached to what machine? Are you talking about a network printer the IIS server can see? Are you talKing about pages per job or total pages that have gone through the queue? Or are you talking about the must of pages the printer has put through during it's lifetime?
|
|
|
|
|
Sir Thanking you for reply me.
I am talking about the printer attached with computer.
when printer print the pages per day through our attached printer.i want to count the how many pages print on that day.
e.g if 350 pages print on that day.I want to count just numbers of pages print on day using asp.net with C#. so sir please guide me how to solve this problem.please provide me Code for that program.
I am waiting for your positive Reply sir.
Thanking You So much for helping me.
|
|
|
|
|
Thanks for reply me.
I am talking about computer attach to printer then we print pages from particular printer in a day. I just want that everyday printer that attach to the system(windows 7) count the numbers of pages that day only.I want everyday how many pages print from Printer thats only Sir.
Using asp.net With C#
Thanking you
I waiting your reply sir
|
|
|
|
|
ASP.NET code runs entirely on a web server, not the client machine. You cannot do what you want in a web application. Well, not unless the server is hosting all of the printers you want stats on.
|
|
|
|
|
its not possible in asp.net ?
|
|
|
|
|
What did I just say??
If you're talking about the printers attached to the clients machine, NO IT'S NOT POSSIBLE IN ASP.NET.
ASP.NET code runs ENTIRELY on the server, not the client. ASP.NET code has no way to get at the devices attached to a client computer. It can ONLY use the stuff attached to the server.
|
|
|
|
|
its is possible only server not client machine?
How can I made for server machine using asp.net using C# please guide me.
Thanking you support me.
|
|
|
|
|
|
how to check arithmetic ,logical, trigonometric and gromatric
values in nested switching ..
i mean how to use nested switch for the above operators
when i press l it us some logical operation \
and when i press a give some arithmetic operation and so on....
|
|
|
|
|
You are approaching this from the wrong direction. You first need to define your problem and then break it up into the separate parts necessary for a solution. Only then can you decide whether you need any switch statements, let alone nested ones.
Use the best guess
|
|
|
|
|
Can't be solved using a "switch"; this is where we traditionally use the parser-pattern.
Bastard Programmer from Hell 
If you can't read my code, try converting it here[^]
|
|
|
|
|
Are you looking for something like this,
string Operator = GetOperator();
switch (Operator)
{
case "Sin":
case "Cos":
case "Tan":
{
// do something
switch (Operator)
{
case "Sin":
break;
case "Cos":
break;
case "Tan":
break;
default:
break;
}
break;
}
case "+":
case "-":
case "*":
case "/":
{
// do something
switch (Operator)
{
case "+":
break;
case "-":
break;
default:
break;
}
break;
}
default:
break;
}
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
