And download

And download

#include <iostream> #include "Rectangle.h" #include <iomanip> using namespace std; void intro(); int main() { intro(); double rectLen; double rectWidth; Rectangle rect; bool tryAgain = true; cout<<"\t\tEnter the length of the rectangle: "; cin>>rectLen; cout<<endl; while(tryAgain) { try { rect.setLength(rectLen); tryAgain = false; } catch(Rectangle::NegativeLength e) { cout<<"\t\t"<<e.getValue()<<" is a negative number\n"; cout<<"\t\tEnter a positive number: "; cin>>rectLen; cout<<endl; } } tryAgain = true; cout<<endl; cout<<"\t\tEnter the width of the rectangle: "; cin>>rectWidth; cout<<endl; while(tryAgain) { try { rect.setWidth(rectWidth); tryAgain = false; } catch(Rectangle::NegativeWidth e) { cout<<"\t\t"<<e.getValue()<<" is a negative number\n"; cout<<"\t\tEnter a positive number: "; cin>>rectWidth; cout<<endl; } } cout<<endl; cout<<"\t\tHere is the rectangle's information\n"; cout<<endl; cout<<fixed<<setprecision(2)<<showpoint; cout<<"\t\tLENGTH: "<<rect.getLength()<<"cm"<<endl; cout<<"\t\tWIDTH: "<<rect.getWidth()<<"cm"<<endl; cout<<"\t\tAREA: "<<rect.getArea()<<"squared cm"<<endl; return 0; } void intro() { cout<<"\t\tThis program returns error value in error functions\n"; cout<<"\t\t-----------------------------------------------------\n"; cout<<endl; }

How can I install C++ to my macbook pro 2014

#ifndef RECTANGLE_H #define RECTANGLE_H class Rectangle { public: void setLength(double); void setWidth(double); double getLength() const { return length; } double getWidth()const { return width; } double getArea()const { return length * width; } class NegativeLength { private: double value; public: NegativeLength(double val) { value = val; } double getValue() const { return value; } }; class NegativeWidth { private: double value; public: NegativeWidth(double val) { value = val; } double getValue() const { return value; } }; private: double length; double width; }; #endif // RECTANGLE_H

#include "Rectangle.h" void Rectangle::setLength(double len) { if(len >= 0) length = len; else throw NegativeLength(len); } void Rectangle::setWidth(double w) { if(w >= 0) width = w; else throw NegativeWidth(w); }

How can I install C++ to my macbook pro 2014

Plz help me to convert thz syntex to c++ #include<stdio.h> struct code_system{ char letter; char code[10]; }; int main(){ FILE *filePointer; struct code_system cs; filePointer=fopen("morsecode.txt", "r"); if(filePointer==NULL){ printf("morsecode.txt file failed to open."); }else{ printf("The file is now opened."); printf("\nLETTER\tCODE"); printf("\n-----\t------\n"); fscanf(filePointer,"\n%c %s",&cs.letter,cs.code); while(cs.letter !='*'){ printf("\n%c\t%s",cs.letter,cs.code); fscanf(filePointer,"\n%c %s",&cs.letter,cs.code); } fclose(filePointer); printf("\nData successfully read from file output2.txt.\n"); printf("The file is now closed"); } return 0; }

Hi group, sorry if this is a repeated question here, but I'm feeling a bit lost and would appreciate some help. I learned a bit of C++ and C in high school, and went on to work as a C++ dev (C++ 03 version) for a year before switching to mostly C# and Python. I lost touch with C++ completely and it has been kind of intimidating to me ever since the more recent versions have come along and I feel I'm too far behind everyone else. Can someone point me in the right direction so I can catch up on the latest versions of C++ and get a bit more familiar with the language?

hi...I'm a biginner(c++). Am trying to reverse all the characters of a sentence...plz anyone help me to correct the errors. #include <iostream> using namespace std; int main(){ cout<<"\n\nInput your message : "; int size=100; char string[size]; cin>>string; char rev_string[100]; int j = 0; for (int i = 100; i < 0; i--){ while(string[j] =! NULL){ string[j] = rev_string[i]; j++; }break; }cout<<rev_string; return 0; }

string is array of std::string and rev_string is array of char. You should use macro too for size

He hasn't include <string> so he has no problem to name (except readability)

> string[j] = rev_string[i];

You forget to make rev_string contain NULL character

He even has worse mistake

hi...I'm a biginner(c++). Am trying to reverse all the characters of a sentence...plz anyone help me to correct the errors. #include <iostream> using namespace std; int main(){ cout<<"\n\nInput your message : "; int size=100; char string[size]; cin>>string; char rev_string[100]; int j = 0; for (int i = 100; i < 0; i--){ while(string[j] =! NULL){ string[j] = rev_string[i]; j++; }break; }cout<<rev_string; return 0; }

string may contain less than 100 character but he does copy all of the 100 character reversely

Oh sorry, i miss read it

😂I did this

Okay i got it i is 100

string is array of std::string and rev_string is array of char. You should use macro too for size

hi...I'm a biginner(c++). Am trying to reverse all the characters of a sentence...plz anyone help me to correct the errors. #include <iostream> using namespace std; int main(){ cout<<"\n\nInput your message : "; int size=100; char string[size]; cin>>string; char rev_string[100]; int j = 0; for (int i = 100; i < 0; i--){ while(string[j] =! NULL){ string[j] = rev_string[i]; j++; }break; }cout<<rev_string; return 0; }

int size = 100 Using size as a dimension for string is problematic use this instead constexpr int x = 10; size of an array should be know at compile time

but if i do.... for(i=2;i<=n;i++)

but if i do.... for(i=2;i<=n;i++)

You actually can check up to n/2, e.g. if you have 31, then dividing by 16 doesn't make sense already since 2 was checked So the checks above n/2 don't really add value

So, in this case the n+1 will not be reached because it will break on your condition when i == n, because any value is divisible by itself without reminder

in case of i<=n I was wondering if i=n+1

I think there are even more optimal ways of doing that (which I heard of but can't understand :))

So, in this case the n+1 will not be reached because it will break on your condition when i == n, because any value is divisible by itself without reminder

Azure RDP available

redacted

for(; a <= b; a++) { switch (a) //bla-bla-blah } std::cout << b % 2 ? "odd" : "even"

I read this before I read the question I thought this is some kind of kernel code🥲 but after reading the question ...

for(; a <= b; a++) { switch (a) //bla-bla-blah } std::cout << b % 2 ? "odd" : "even"

+ don't use a case without a break that's too complex don't worry about speed😅 (I have done the same only for speed in creating a programming language interpreter just because it was a bit faster in my case)

I think It's just stupid to use multiple conditional using if else more than 3 lines

🥲could even use a array of strings like std::string numbers[] = {"one","two",...};

I prefer pointer of char that allocated in data segment