If what you posted is your whole class, you’re missing a curly brace. Exactly as the error message says. using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; public partial class Default2 : System.Web.UI.Page { protected void gettickvalue(object sender, EventArgs e) { Random RandomNumber = new Random(); int n = RandomNumber.Next(1, 9); … Read more
You should use either string captcha = listBox1.SelectedItem.ToString(); Or int captchaIndex = listBox1.SelectedIndex; In the code you posted, captcha contains a string representation of the listBox1.SelectedIndex instead of the item’s text. 0 solved how i make listbox and choose the items from it? [closed]
If I got your question right, you’re looking for something like Constructor-Chaining public class Class1 { public Class1() : this(string.Empty) { } public Class1(string val1) : this(val1, string.Empty) { } public Class1(string val1, string val2) :this(val1, val2, string.Empty) { } public Class1(string val1, string val2, string val3) { // Do something with the val’s } … Read more
Nothing to stop this float fun(float a) { cout << fixed << setprecision(1); return a; } But that’s stupid code for a stupid puzzle. What does this have to do with real programming? 3 solved How to add decimal to floating point number with non-decimal value [closed]
Refactor the code that is repeated into a method that takes an Action<int[]> parameter. Something like this (untested): void Main() { Random rnd = new Random(Guid.NewGuid().GetHashCode()); int[] ArrayRandom = new int[200000]; for (int j = 0; j < ArrayRandom.Length; j++) ArrayRandom[j] = rnd.Next(int.MaxValue); performSort(“Heap Sort”, ArrayRandom, HeapSort); performSort(“Cocktail Sort”, ArrayRandom, HeapSort); performSort(“Selection Sort”, ArrayRandom, HeapSort); … Read more
restavracija is a type, not an object. You have to instantiate it to produce an object. In this particular case, it looks like you’re expecting an array of them, and you want to call that array polje. Such an array declaration will look something like: restavracija polje[10]; Accessing element i in that array will then … Read more
I think the better question is, What does each part of the typical Main method declaration mean? Can you take out some keywords? Sure, but the method will not necessarily be the same as the one defined below. public static void Main(string[] args) public refers to the visibility, without public, the code will use its … Read more
You could use the AES Crypto Service Provider and then store the output as a binary string representation of the byte array output. I.e 12345 might encrypt into “1001001010110001” 4 solved Encrypt String (of only digits) into another String (of only digits)
The biggest problem here is that your constructor does not return until all of the tasks have completed. Until the constructor returns, the window will not be shown, because the window messages related to drawing the window aren’t going to be processed. Note that you don’t really have “deadlock” here per se. Instead, if you … Read more
If you’re trying to select the checkboxes using code in your code behind, that’s going to be slow because it’s a back-end solution for what should happen in the front-end. Even if you set up pagination so you display only 50 checkboxes at a time, it’ll still be slow if you’re doing the checking in … Read more
You don’t have to define seperate interfaces for this. You can also use a baseclass to achieve polymorphism. For more info check this page: Polymorphism – C# programming Example of using polymorphism in C#: using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace Animals { class Program { static void Main(string[] args) { … Read more
To convert a string to string[], you can initialize a single-element array: efStudent.sponsor = new string[] { Convert.ToString(student.Sponsor) }; 4 solved String to String[] [closed]
Make sure you’re checking the actual size. Windows has different ways of showing it. Compare the “Size” in bytes (e.g.16666) rather than the “size on disk”, which will be rounded up depending on the filesystem. Update Your drop box link has this code like this:- FILE* output = fopen( “test_output.dat”, “wb” ); fwrite( fileBuf, 1, … Read more
Look here vector<vector<double> >a(3,vector<double>(4)); You defined a as a vector having 3 elements of type vector<double>. So a[0] has type vector<double>. vector is a user defined type. It is not a pointer. 2 solved Convert c++ vector to c-style pointer
The first character in an identifier must be a-z, A-Z, or underscore, for 53 possibilities. Subsequent characters can be digits 0-9 too, for 63 possibilities. So n characters give 53 * (63**(n-1)) legal identifiers: Length Names 1 53 2 3339 3 210357 // much less than 1000000 4 13252491 // much more than 1000000 Some … Read more