I feel like taking risk to answer that but you can use Enumerable.All with char.IsDigit method and parse it to int like; if(myString.All(char.IsDigit)) { return int.Parse(myString); } Or better, use int.TryParse to check your string is valid integer or not. solved C# checking a whole char for numbers [closed]
By char *stdnames[100]; you got an array of (pointers to char). The NEXT BIG QUESTION is Who will allocate memory for each of these pointers? A small answer would be – You have to do it yourself like below : stdnames[count]=malloc(100*sizeof(char)); // You may replace 100 with desired size or stdnames[count]=malloc(100); // sizeof(char) is almost … Read more
First, char *stuff_to_append_to[] is an array of pointers of undetermined length, that is not a valid parameter, as the last dimension of an array must be specified when passed to a function, otherwise, pass a pointer to type. Next, char **stuff_to_append is a pointer to pointer to char and is completely valid, but given your … Read more
Hard to be sure because your question isn’t very clear. But perhaps this is what you want uint16_t z = *reinterpret_cast<uint16_t*>(array); Another possiblity is uint16_t z = static_cast<uint8_t>(buf[0])*256 + static_cast<uint8_t>(buf[1]); and another is uint16_t z = static_cast<uint8_t>(buf[1])*256 + static_cast<uint8_t>(buf[0]); Try them all, they differ only in what endianness they use. You should look that up. … Read more
Did you maybe mean to do this: for (int i = 0; i < userString.length(); ++i) { if (isupper(userString[i])) { userString[i] = (tolower(userString[i])); } else if(islower(userString[i])) { userString[i] = (toupper(userString[i])); } } This will actually inverse. What you were doing before doesn’t work, and also only converts to uppercase 11 solved How to inverse string … Read more
Add white space before %c => while (fscanf(pFile,” %c”, &alpArr[i++]) == 1); It should work. 1 solved Reading characters from a File with fscanf
you forgot to add ‘\0’ char in zero terminated char array, after you replaced value with index 2. 1 solved Assigning char array from ifstream breaks array if adding another char to array
Assuming you know how to sort a 1d array (otherwise look it up), this is fairly similar. Instead of swapping two chars (when you use bubble sort or any other sorting algorithm based on swapping items), you swap the two complete rows. So you get something like this (for bubble sort): for char1 of each_last_row_char … Read more
Here is the code that u can formulate to find a letter count from a text file.i have pushed an harcoded letter ‘a’ u can change it to dynamic also. import java.io.*; import java.util.Scanner; public class CountTheNumberOfAs { public static void main(String[] args)throws IOException { String fileName = “JavaIntro.txt”; String line = “”; Scanner scanner … Read more
How do I make a loop that runs through every value in a list, printing each value in a C# console application? [closed] solved How do I make a loop that runs through every value in a list, printing each value in a C# console application? [closed]