This is my first post here, so sorry if it's a little bit bad :I but I have a problem. When I tried to make a Hello World C++ project in Eclipse (first time trying c++) I tried to build the project and run it, but it said that there are errors. Here is the code:
#include <iostream>
using namespace std;
int main() {
cout << "!!!Hello World!!!" << endl; // prints !!!Hello World!!!
return 0;
}
And also here is a screenshot of the errors:
I tried looking but couldn't find a solution, so sorry if I look stupid for being a total noob :\ All and any help is appreciated. :) Thanks!
The code looks good to me. I think you didn't setup C++ in Eclipse correctly.
Follow the step-by-step setup here. You should be able to work it out after correct setup.
Related
I am new to C++.I am following freeCodeCamp.org tutorial on C++.
The program looks like this-
#include <iostream>
#include <cmath>
using namespace std;
int main()
{
int luckyNums[] = {4,8,15,16,23,42};
cout << luckyNums[2];
return 0;
}
since I had VS code already installed I did not install code blocks.
Every time I run the above program I get an error "Access is denied". Also at the same time McAfee pops up saying "we just stopped a virus". I couldn't find a solution to this on Google anywhere.
When I was trying to do something with the code, in line 6 I did
cout << luckyNums[2] << endl;
and it worked and returned 15 but now the problem was I didn't understand why it worked because Mike got the result without doing this in code blocks.
Mike is the person giving the tutorial on freeCodeCamp.org
I know this question seems odd, as NSString doesn't exist in C++. Yet, for some reason, when I run the following code:
#include <iostream>
int main() {
std::cout << "Hello, World!" << std::endl;
return 0;
}
I see the following output:
#"Hello, World!\r\n"
The C functions printf and puts show similar behavior. I also see the same output if I store the text as a std::string and then display that.
I have no idea how to even start troubleshooting this. What is going on?
I figured it out a while ago but I forgot about my own question.
In the debug window, it just displays output like that. It only gets formatted like that in debug mode; if I compile it and run the executable from the command line, then it works as expected.
My aunt gave me a book about c++ (for beginners). It's nice and so I wanted to test one of those code samples. But I am just getting errors. I didn't find anything that could help me on Google or so.
I am using Eclipse Mars.1 C++ and MinGW.
Code:
/*
* Erstes_Programm.cpp
*
* Created on: 26.12.2015
* Author: Luca
*/
// Erstes Programm
#include <iostream>
using namespace std;
int main() {
cout << "It's just a test!" << endl;
return 0;
}
I am getting those errors:
Using namespace:
Description Resource Path Location Type
expected ';' before ':' token
Erstes_Programm.cpp /Programmieren C++ (Einführung)
line 10
C/C++ Problem
AND
Description Resource Path Location Type
expected unqualified-id before ':' token
Erstes_Programm.cpp /Programmieren C++ (Einführung)
line 10
C/C++ Problem
Hope somebody can help me?
Here is a screenshot:
EDIT: PROBLEM SOLVED!! I don't know WHAT I did, but it's solved I'm not getting any errors and everything works perfectly. Thanks for everybody who wanted to help
The first line in the screenshot doesn't make any sense. Remove it. The rest looks fine. And in the future, post text, not screenshots.
Instead work on X-code rather then eclipse for C++. Visual studio is most recommend.
For Your problem, I think you got to play with the library, something must not be supported, other then that your code look fine.
that's my first use to code block but it hasn't gone fine ,, i face a really weird problem
i cant even describe it so i will just tell you what's happened.
the problem is that the ide dont compile my project even if the code were correct
its just open a new tab that called "iostream" and the console window appears but empty
why do that happens ?
look to the code which the ide face a problem while compiling it ,, simplest code ever
#include <iostream>
using namespace std;
int main()
{
cout << "Hello world!" << endl;
return 0;
}
and this is the compiling results...
thats all..
will codeblocks stop annoying me ?
This line is not valid syntax
usingnamespace std;
Those are two separate keywords
using namespace std;
And since you are just starting C++, Lesson 1: Don't do that.
I am new in programming. but i know turbo C & i can work with it. But how to work on Dev C++?
i means 1.How to Compile & 2. How to Run. I have Windows so if anyone help me with proper example than it will be great.
Dev c++ is very simple! To do the basic, Open you file, compile and run using the menu Execute!
However, if u are starting something new now, I would suggest you consider using eclipse. It is not so easy in the first days but the long term gain is giant!
I would like to improve my answer... I suggested that you should consider using eclipse. I still think that eclipse is great. Furthermore, I had had some problems with the old version of dev c++. After reading the comment of #Orwell (which provided facts that I didn't know), I checked the new version and the issues that I had had before disappeared. So, the big picture of dev c++ is that it is a program that works well and it is very simple. There is a cost to start using eclipse!
Example:
#include <iostream>
using namespace std;
int fibonacci(int n){
if(n==1)return 0;
if(n==2)return 1;
if(n>=3)return fibonacci(n-1)+fibonacci(n-2);
}
int main(){
//
int n =10;
cout << "The element of the Fibonacci series is " << fibonacci(n) << "\n";
return 0;
}