Нельзя преобразовать тип string к integer как исправить - Исправление недочетов и поиск решений вместе с Examum.ru

program SS; 
const 
Stroka : array [0..15] of Char = ('0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'); 
var a,b,strok, y,x,x3, n,i, code:integer; 
x1, DOO1, POSLE1 :string; 
x2:char; 
{для первого массива}
NN,DOOO1: Longint; {Любая система сч из 10}
H : String; 
begin 
writeln('Программа переводит любое чилсо из любой СС в в любую СС: '); 
write('Введите число с точностью до 2-х знаков после запятой: '); 
readln(x1); 
write('Введите СС этого числа: '); 
readln(n); 
write('Введите СС в которую нужно перевести: '); 
readln(y); 
 //----------------------------------------------------------
strok:=length(x1); 
for i:=1 to strok do 
begin 
x2:=x1[i]; 
x3:=i-1; 
if x2 = '.' then 
DOO1:= Copy(x1,1,x3); {до} 
POSLE1 := Copy(x1,x3,strok) ; {после} 
end; 
Writeln (DOO1); 
Writeln (POSLE1); 
 
//-------------------------------------------------------------
{Из ДЕСЯТИЧНОЙ СС в ЛЮБУЮ целой части}
begin 
Write('Введите положительное число в десятичной СС: '); 
ReadLn(NN);  
repeat 
Val(DOO1,DOOO1,code);
H := Stroka[DOOO1 mod y] + H; 
DOOO1 := DOO1 div y;
until DOOO1 = 0; 
if code <>0 then
Writeln('Ошибка при преобразовании в позиции:', code)
else
WriteLn('В',y,' - ричной системе = ', H); 
end;
end.

Источник

I keep getting the debug error «cannot implicitly convert type ‘string’ to ‘int'» in C#.

Here is a snippet of my code:

private void button2_Click(object sender, EventArgs e) //button to start takedown
        {
            byte[] packetData = System.Text.ASCIIEncoding.ASCII.GetBytes("<Packet OF Data Here>");
            string IP = "127.0.0.1";
            int port = "80";

            IPEndPoint ep = new IPEndPoint(IPAddress.Parse(IP), port);

            Socket client = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
            client.SendTo(packetData, ep);
        }

dee-see

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asked Jun 30, 2012 at 13:48

If possible:

int port = 80;

If you cannot have an int variable you will have to parse it:

int port = Int32.Parse("80");

e.g.

string a = "80";
int port = Int32.Parse(a);

answered Jul 2, 2012 at 10:04

JenninhaJenninha

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Here is the error:

int port = "80";

convert it into

int port=80;

answered Jun 30, 2012 at 13:49

Ashwin SinghAshwin Singh

7,1674 gold badges36 silver badges55 bronze badges

You have to convert string to int here:

int port = "80"; // can't assign string to int

Just pass it as int:

int port = 80;

answered Jun 30, 2012 at 13:49

ZbigniewZbigniew

27k6 gold badges58 silver badges65 bronze badges

In your case, everyone else’s answer that port needs to be of type «int» instead of type «string» is correct. However, if you really had a string from user input, and you needed to convert it back into an int Int32.TryParse or Int32.Parse will suffice.

answered Jun 30, 2012 at 18:02

selbieselbie

97.9k14 gold badges102 silver badges171 bronze badges

int port = "80";

is incorrect because int expected an integer, not a string. By using speech marks, you’re provding 80 as a string, not as a integer. Simply remove the speech marks so that you’re assigning the variable as an integer.

int port = 80;

answered Jun 30, 2012 at 13:51

keyboardPkeyboardP

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You can’t mention integer in «» as you have done int port = "80";

correct version should be int port = 80;

answered Jul 2, 2012 at 10:55

LearningLearning

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change
int port = «80»;
to
var port = «80»;

And
IPEndPoint ep = new IPEndPoint(IPAddress.Parse(IP), port);
to
IPEndPoint ep = new IPEndPoint(IPAddress.Parse(IP), Convert.ToInt32(port));

answered May 10, 2017 at 16:37

BalaBala

456 bronze badges

Источник

Узнай цену своей работы

Формулировка задачи:

Всем привет.
Необходимо исправить ошибку (в 26 строке преобразование типа string к типу integer).
Так же по возможности прошу преобразовать, упростить код.

ЗАРАНЕЕ БЛАГОДАРЮ!!!

Код к задаче: «Исправление ошибки (преобразование string=>integer) + оптимизация кода»

textual

Листинг программы

var
names:array[1..20] of string;
i,n,k:integer;
name:string;
 
// Тело
begin
  randomize;
// Количество игроков
 write('Количество игроков: ');
  readln(n);
// Имена
 writeln('Введите имена игроков');
  for i:=1 to n do
   begin
    write(i,'. ');
     readln(names[i]);
     end;
 write(names[random(n+1)]);
end.

Полезно ли:

13 голосов , оценка 4.154 из 5

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Источник

    Console.WriteLine ("Please enter some numbers");
        int sum = 0;
        for(;;)
        {
            string input = Console.ReadLine ();
            if (string.IsNullOrEmpty (input))
            {
                break;
            }
            int inputParsed = int.Parse (input.ToString ());
            int sumParsed = int.Parse (sum.ToString ());
            sum = sum + input; // throws an error here

            Console.WriteLine (sum);

I want my programme to show the sum of all numbers entered by user, by even though I have parsed all the variables needed, it throws an «cannot implicitly convert type ‘string’ to ‘int'» error. What’s wrong?

asked Jul 23, 2013 at 17:15

sum = sum + input; //throws an error here

should be:

sum = sum + inputParsed ;

You are using the original input instead of the parsed value. And you don’t need sumParsed because you just keep the total sum in sum and you do no need to cast the int to a string and then parse it back to an integer.

answered Jul 23, 2013 at 17:16

aweisaweis

5,2484 gold badges29 silver badges46 bronze badges

to check if the input of the user is right i would prefer

int userInput = 0;
if( int.TryParse( input, out userInput ) == false )
{
     break;
}

This is just an advise and not directly a solution to your problem.
There are enough answers =)

answered Jul 23, 2013 at 17:21

ViperViper

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int inputParsed = int.Parse (input.ToString ());
            //int sumParsed = int.Parse (sum.ToString ());//no need
            sum = sum + inputParsed ;

answered Jul 23, 2013 at 17:18

AD.NetAD.Net

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I would rewrite this entirely (Your original error was because you were trying to add a string to an int, and not the parsed input as an int)

Console.WriteLine ("Please enter some numbers");
int sum = 0;

while (true)
{
    int parsedInput = 0;
    string input = Console.ReadLine();
    if (!string.IsNullOrEmpty(input) && int.TryParse(input, out parsedInput))
    {
        sum += parsedInput;
        Console.WriteLine (sum);
    }
    else
    break;
}

answered Jul 23, 2013 at 17:24

CyralCyral

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Источник

Remove From My Forums

Question
User-1564517746 posted

Hi,

I know it is a very simple question, but unfortunately i am very new to these concepts, hence kindly help me. I am trying to add a new user into the database, hence i decided to use Textboxes inorder to add. But some of the columns such as ID is of
integer datatype, while Gender is of Char datatype, DateofBirth is of DateTime type.

Now how do i save a value for ID, Gender etc into the database using textboxes.

I am primarily working with the UserInfo class. The Userinfo is a class object that stores the data representation of the users table in the database.

ui.ID=tbID.text; // this is where i am having the error » Cannot implicitly convert type ‘string’ to ‘int’ «

Thanks

Zaid Papa

Answers

User211842812 posted

You could try something like this.

ui.ID = Int32.Parse(tbID.text)
- Marked as answer by
  
  Thursday, October 7, 2021 12:00 AM
User445179017 posted

ui.ID = Convert.ToInt32(tbID.Text);

Thanks
- Marked as answer by
  Anonymous
  Thursday, October 7, 2021 12:00 AM

Источник

Формулировка задачи:

Код к задаче: «Исправление ошибки (преобразование string=>integer) + оптимизация кода»

Question

Answers