C++ :: How To Cout Boolean Result In Words
Dec 11, 2013
So I want to go from having 0 or 1 to having words like false or true. I did it with an if statement earlier today, but I had to get rid of the whole bool thing. I made the variable just a float. But he requires we use bool. Here is my code:
Car y;
cout << "Initial value for the Car: " << endl;
cout << "Age= " << y.getAge() << " years old. The Price= $" << y.getPrice() << endl;
y.setAge(8);
y.setPrice(12000);
y.setRaceCarStatus(true);
cout << "Modified value for the Car: " << endl;
[Code]...
I commented (//) the if statement that I had earlier. If I set RacecarStatus to True, is cout's 1. The starred (*) line right above the comments is the line that I was required to add. I want to cout the actual word true. The one I had this morning won't work anymore.
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Dec 20, 2013
I have written below program to count number of words and lines and print the all the words.
#include <iostream>
using namespace std;
#include<fstream>
#include<string.h>
int main() {
ofstream outfile;
[Code] .....
Its compiling fine but when executed its displaying I infinite times...
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May 19, 2013
I was reading this earlier [URL] ..... and I was trying to figure out how to pick one of the words randomly from my text instead of using all the words in it.
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Apr 20, 2013
Am i using boolean values correctly? our professor wanted boolean value use for the if and else statements.
Code:
#include <stdio.h>
#include <math.h>
#define GRAVITY 9.8
#define LIMIT 500
#define SEC 5
[Code] ....
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Jun 10, 2014
This is what my code looks like
class Transaction{
private:
char type;
double amount;
double balance;
string description;
[Code] .....
This part is what I am having trouble with as this section is not printing anything.
for (int i = 0; i < transactions.size(); i++){
cout << transactions[i].gettype() << " ";
cout << transactions[i].getamount() << " ";
cout << transactions[i].getbalance() << " ";
cout << transactions[i].getdescription() << " ";
}
}
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Mar 22, 2013
I made some research on how to negate a boolean value but none seemed to work. Ok, so I have the following code:
Code:
#include <iostream>
using namespace std;
int main() {
bool Turn = true;
for (int i = 1; i < 11; i++)
[Code]....
As of now the code prints "XXXXXXXXXX". And I want it to print "XOXOXOXOXO", so I tried 2 different things, which did not work:
Code:
#include <iostream>
using namespace std;
int main()
{
bool Turn = true;
for (int i = 1; i < 11; i++)
{
[Code]...
Code:
#include <iostream>
using namespace std;
int main()
{
bool Turn = true;
for (int i = 1; i < 11; i++)
[Code]...
Ok so I made those changes so that the boolean 'Turn' would change everytime the loop executed. Guess it doesn't work.
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Oct 30, 2013
Other than the theoretical difference between cout and cerr where the former puts values to the monitor and the latter puts values related to errors to the monitor, is there any real difference here? Why not use cout when you want to send anything to monitor? Why use cerr at all?
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Jun 8, 2013
Let's say I have a product that needs service after 500 hours at 100 RPM. I can dsiplay the remaining hours only as an integer and we only have integer math. Management wants it to display 500 for the first hour, not 499 after the first minute is ticked off. But after a few minutes fullHours will be 499 and partialHours will have some value. I have 3 ways to determine displayHours to suit management and I want to know if the first is ligit.
short fullHours = 500;
short partialHours = 0;
short displayedHours = 0;
// Method 1 - Is is Kosher to cast a boolean as an int? Is TRUE always a 1 or is that a bad assumption?
displayedHours = fullHours + (short) (partialHours != 0);
//Method 2 - Works but some have disdain for the ternary conditional
displayHours = fullHours + (partialHours ? 1 : 0);
//Method 3 - seems a bit pedantic
displayHours = fullHours;
if (partialHours != 0) {
displayHours++;
}
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Jan 9, 2015
Is the boolean function already defined under the default headers? Else, how would I create one? Would this work? :
#define true 1
#define false 0
typedef int bool;
Bool x=true;
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Mar 6, 2014
Here is code first:
//fp_screen.h
class fp_screen{
public:
double fps;
double xx3;
[Code] .....
fps:1.16922e+006 // this will happen 80%
fps:900 // this is how it should be
if i do cout << "fps:" << (int)screen.fps << endl;
Somethings number is right like 800 or else
put sometimes its 5423423... something.
What is going on here?
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Sep 7, 2014
Am having a problem with the following program not displaying the cout after the while loop, it doesn't ask if I want to enter another employee but just prompts for the employee payrate again.
#include <iostream>
using namespace std;
int main()
// Parameters: None
// Returns: Zero
// Calls: None
[Code] ....
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Apr 24, 2014
i have a Boolean function containing 2D dynamic array, it'll retain either 0 or 1, how can i delete the dynamic array?
bool something (int** a,int b, int c) {
int **arr = new int*[b];
for(int i=0;i<b;i++)
arr[i]= new int[c];
if (...) return 0;
else ...
if (...) return 0;
}
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Nov 19, 2014
I have my Arduino send the following string every second:
69.4,69.4,69.4,69.4,69.4,69.4,8.42,100,100,50,50,20,16,10,14
and i currently have my C# code split it and send the values to corresponding text boxes:
// SERIAL READS:
private void myport_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e) {
string RxData = myport.ReadLine();
this.BeginInvoke(new LineReceivedEvent(LineReceived), RxData);
[Code] ....
Now if i were to add true/false values to my arduino string, im not sure to read it. I would like the bool values to enable/disable led jpegs to simulate output status.
rly1_led.enable = newData[15];// if true
Ive tried everything and just cant figure it out. This is my first C# project.
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May 11, 2014
Iam working with arrays and i cant get to the write solution to cout the characters.
the Question is : Write a program that inputs a character string from the user as an input (using cin.get())and store it in myStr[ ] array.Assume that the length of the input string is less than 100 characters and the string may contain lower case, upper case, and/or symbols.The program should then print the number of lower case, upper case, digits, and symbols along with the characters themselves.
my code :
#include <iostream>
#include <string>
#include<iomanip>
using namespace std;
int main() {
int ctr1=0, ctr2=0, i=0, ctr3=0;
[Code] ...
What i have now, how can i cout the uppercase characters and the lower case characters and the symbol characters !
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Dec 11, 2012
In the following example, how 'd I use sprintf when I have a boolean type of variable?
Code:
char s[64];
bool bVar = false;
sprintf(s, "This is a boolean variable bVar = %?", bVar);
What is supposed to replace ? in the sprintf statement ?
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Nov 16, 2013
Finally got to functions. Made a simple one that adds two numbers:
Code: int add(int a, int b){
cout<<"a+b=";
return a+b;
}
It refuses to give an output unless I use cout.
If I just call the function like so: "add(12, 24);", shouldn't it print out a+b=36? It only prints out "a+b=", unless I use "cout<<" ahead of the call.
My simple question is why does it need cout ahead of the call? Shouldn't "return" do its job and print out the number?
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Apr 24, 2014
I need writing a macro that would return true/false (1/0) )value. I want to check if a certain element exists in the array. The macro will accept array, its size, and the value to be compared, and must return yes or no. Here is the code that I have written:
Code:
#define EXISTS(T, a, n, val) do {
char ret=0;
T *a_ = (a);
size_t n_ = (n);
for (; n_ > 0; --n_, ++a_){
ret = (*a_ == val);
}
}
while(0)
How can I get the result from this macro.
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Feb 17, 2013
i ran the following code in the latest version of code::blocks and it tells me that the objects cout and cin are not declared in this scope. what is the problem?
I used to use Turbo C++ 3.0 and i had no problem whatsoever with that compiler. But now i am trying to move to code::blocks but it is proving very very hard as all the standards have been changed.
I am a school student and thus, we had been told to practice on Turbo C++ 3.0 and now i am unable to unlearn it. Also, if i use printf in place of cout there is no error but i want to use cout as it is what i am comfortable working with.
#include<fstream>
#include<conio.h>
int main() {
using namespace std;
char name[20];
[Code] ....
Is there some document to which i can refer so as to get the latest C++ standards which is C++0x i believe?
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Jun 30, 2013
I m working calculating stuff in files, input and output data, etc..., the question is the following: I output double numbers with:
myFIle << fixed << setprecision(10) << double;
The problem i got is that when a numer is like 193123.2 it prints like 193123.200000..., so finally, ¿how can i print it with any additional 0 that i need?.
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Feb 18, 2015
Question for coding transivity in c++
a->b b->c then a->c
It should contain a main code reading from boolean matrix class. for ex)input file is
8
0 1
1 2
2 3
3 4
4 5
5 6
6 7
8 is the number of no.
what program should do.
1. check if 0->7 first(0th element)->last
2. check every 5th(5,10,15...) element is to last 5->7
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Nov 18, 2013
I am writing a code where I have to find out the spot a letter is in. I am getting an error with assigning a function using a boolean operator.
bool is_member(const vector<char> & list, char character) {
for(int i=0; i < list.size(); i++) {
if(character==list[i]) {
return(true);
[Code] .....
My constant vector list is { 'a', 'e', 'i', 'o', 'u', 'y'}. My error comes in on line 20. I am not calling the boolean correctly. If I type in the letter "i". Then the function should output 2 since i is in the 2nd index spot of my vector list. How to fix my error? I am not understanding why my line of code is not working.
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Mar 24, 2014
I have a bool type function and set it to explicitly return false, but I am still getting true as the return.
#include <iostream>
#include <fstream>
using namespace std;
int main(int argc, char* argv[]){
double coeffs[3];
double roots[2];
[code].....
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Apr 11, 2014
I'm trying to build a new project and i installed some new libraries in it but when i try to compile any code it doesn't give me any value just press any key to continue, i didn't make any files but one and even if i tried to do this simple task it doesn't cout any result:
#include<iostream>
using namespace std;
int main() {
cout <<("ha");
system("pause");
return 0;
}
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Feb 28, 2013
I am beginner in C++ programming. I having a problem to show the output of all the element i store at a array called total_price. the output become unreadable.
#include <iostream>
using namespace std;
int main () {
float price[1]={0};
int qty;
[Code] ....
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Feb 7, 2014
My assignment : "Input the answer as the words true or false and put the user's answer in a boolean alphabetic variable."
My code:
bool T;
cout << "Type 'true' for lowercase or 'false' for uppercase";
cin >> T;
if (T == "true") {
cout << "Enter a whole number in decimal base: ";
cin >> dec;
cout.setf(ios::showbase);
cout << "Decimal " << dec << " to Hexadecimal with lowercase: " << setbase(16) << dec;
}
I'm not sure how to get 'true' as user-input as true for bool.
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Sep 10, 2014
Requirement: the AddRegistration method in the RegistrationDB class should accept a Registration object and return a Boolean value that indicates if the operation was successful
a brief overview. Form with two combo boxes and a button, when you click the button the data from the combo boxes is entered into a table in the connected database...
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