The code can be roughly translated to the English: Start with a sum of zero then, for every number from 0 to 9 inclusive, add it to the sum if and only if the current sum is even. So, you’ll add zero to the sum (because the sum is currently even) after which the sum … Read more
Introduction If you are a C programmer, you may have encountered a situation where you wrote a code and got a wrong answer. This can be very frustrating and can be difficult to debug. In this article, we will discuss some of the common reasons why you may get a wrong answer in your C … Read more
You can handle this through a few exceptions, relying on the fact that a failed conversion raises a ValueError: input_value = input(“> “) try: int_value = int(input_value) print(“invalid input: value was an int!”) except ValueError: try: float_value = float(input_value) print(float_value) # just echo except ValueError as e: print(“invalid input: “, ” “.join(e.args)) (Python 3 inside) … Read more
Please attempt to answer questions yourself. Googling ‘error CS1513’ lead to this page as the first result – https://msdn.microsoft.com/en-us/library/83ht1k63%28v=vs.90%29.aspx?f=255&MSPPError=-2147217396 Grant Winney’s comment is correct, missing brace. 3 solved C# Error CS1513
You should have a constructor to initialize class members: class account { char itemName[50]; double actualPrice; bool empty; public: account() : empty(false) {} // this initializes the ’empty’ variable to ‘false’. void create_account(); void displayRecord() const; void drawLine3(int n, char symbol); }; solved How can i declare a boolean variable in class in c++
The keyword constexpr was introduced in C++11 and improved in C++14. It means constant expression. Like const, it can be applied to variables so that a compiler error will be raised if any code attempts to modify the value. Unlike const, constexpr can also be applied to functions and class constructors. constexpr indicates that the … Read more
You have to instanciate current class, use this code: public static void main(String[] args) { A a = new A(); int value = a.abc(); } 2 solved How to call a behavioral method from main method in java?
Point 1: You cannot open to read if the file doesn’t exist. Fortunately you probably don’t want to. Simultaneously reading and writing the same file is problematic and almost always a bad idea. Until you know you have to read and write at the same time, open the file for reading read in the file … Read more
Introduction If you are getting an error that says “main is not defined” when you are trying to run a program, it can be a frustrating experience. Fortunately, there are a few steps you can take to try and resolve the issue. In this post, we will discuss the steps you can take to try … Read more
For code like if(a==1) {do1();} else if(a==2) {do2();} else if(a==3) {do2();} else if(a==4) {do2();} else { doOther(); } Equal code will be switch(a) { case 1: do1(); break; case 2: do2(); break; case 3: do3(); break; case 4: do4(); break; default: doOther(); break; } 2 solved Java replace if else with switch
Introduction This tutorial will provide a step-by-step guide on how to create a loop in a program that will continue until the user types in the word “Stop”. This is a useful technique for creating interactive programs that allow the user to control the flow of the program. We will be using a while loop … Read more
You can use a generator expression within the sum function >>> sum(i**i for i in range(1,11)) 10405071317 2 solved How to sum all range output in python 3
Introduction Printing selected elements from a file can be a useful way to quickly access the information you need. Whether you are looking to print out a specific line from a text file or a specific column from a CSV file, there are a few different methods you can use to achieve this. In this … Read more
Introduction The assignment operator is a special operator in C++ that is used to assign a value to a variable. It is different from other operators in that it can be overloaded, meaning that it can be given a new meaning or behavior. Overloading the assignment operator allows for more flexibility when assigning values to … Read more
It means that everything outside lambda scope will be catch by reference. In that case, generator and list. solved What does [&] in the declaration of [&](Type& variable) mean? [duplicate]