Advertisements I’m just starting to learn Java and I just got to the if-else-else if statements section on CodeAcademy. I tried using the if else statement in a method, but I’m not receiving the variable value when I call it, only the if-else statement. I’m guessing this is a very small mistake. (This is my… Read More if-else-else if statements in Java (codecademy)
Advertisements I’ve written this code to convert a string to uppercase and lowercase, however when I call my functions, it doesn’t run. # take the input for the string string = input("Enter any string: ") def string_upper(up): return up.upper() print("Uppercase Output: ", string_upper(string)) def string_lower(low): return low.lower() print("Lowercase Output: ", string.lower(string)) if __name__ == "__main__":… Read More Python functions not running correctly
Advertisements In my database I have two tables: user, columns: id, username friends, columns: this_friend_id, that_friend_id On my website, users can send each other friend requests, and when one user accepts the friend request of an other user, an entry in the friends table is made with the id of the user who sent the… Read More SQL statement complicated INNER JOIN
Advertisements I’m creating a calculator with JavaScript and most functions are working properly, but the operator function defaults to the first if statement each time (I switched add with subtract to test this). i.e. if the add function is in the first if statement of my operator function, every operator button will add the numbers… Read More Operator function defaults to first if statement in JavaScript calculator project
Advertisements I know how to write CASE WHEN statements, but the problem here is translating them to Microsoft Access "language". I’ve tried with IF statements but it didn’t work, I’ve looked up how to use CASE WHEN statements in Access but copying what I found didn’t work, I’m clueless.. The following is the code I… Read More using CASE WHEN statements in Microsoft Access
Advertisements I can’t run the code because it gives the error mentioned in the title, but I declared it in main. I’m stuck for a few hours and I can’t solve this main.c , here is where I declare the "listaCliente" int main() { Cliente* listaCliente = lerBaseDeDados(); menuPrincipal(listaCliente); } Cliente.c // menu , basically… Read More Error 'listaCliente' undeclared (first use in this function)
Advertisements Hello so I’ve been working a little prgramme which is sort of a calculator (I’m a beginner) and well as you can see in the tittle at then end of the code, the two if strcmp doesn’t work. And vscode is telling me (for the strcmp) Exception has occurred. Segmentation fault. But gcc is… Read More passing argument 1 and 2 of ‘strcmp’ makes pointer from integer without a cast [-Wint-conversion]
Advertisements I don’t understand why but the std::vector is not giving anything after i put a class pointer in the array. // runs at start void States::AssignState(GameState* state) { _nextVacentState++; _states.push_back(state); } // executes in a loop void States::ExecuteCurrentState() { // protection incase there is nothing in the array or the current state is not… Read More Why is the std::vector not giving any outputs in c++
Advertisements Consider these tables: Based on id… Bill is John’s boss Hank is Andy’s and Alex’ boss writers : id name boss_id 1 John 2 2 Bill 2 3 Andy 4 4 Hank 4 5 Alex 4 The writers have papers they write… papers : id title writer_id 1 Boston 1 2 Chicago 4 3… Read More SQL subquery or JOIN on two tables, match to once-removed value
Advertisements I am not sure on the syntax being used in a list comprehension example in the Python Cookbook. Code (with my print statements in) is below: import html # to accept any number of KEYWORD arguments, use ** # treat the argument as a dictionary def make_element(name, value, **attrs): print(f"attrs has type {type(attrs)}") print(f"attrs… Read More Understanding string variable substitution in a python list comprehension