#include <iostream>
#include <exception>
using std::cout;
using std::cin;
using std::endl;
using std::exception;
#include <cmath>
#include <cstring>
class nonNumber : public exception {
public:
virtual const char* what() const throw()//exepction handler error
containd in what() function
{
return "INVALID INPUT: Non-Integer detected";
}
} ex;//exeption instance created
int castInput( char *s )
{
char *temp = s;
int result = 0, negative = 1;
// check for minus sign
if ( temp[ 0 ] == '-' )
negative = -1;
for ( int i = strlen( s ) - 1, j = 0; i >= 0; i--, j++ )
{
if ( negative == -1 && i == 0 )
continue;
if ( isdigit( temp[ i ] ) )
result += ( temp[ i ] - '0' ) * pow( 10, j );
else
throw nonNumber();
// throwing the error to the non number exception class
}
return result * negative;
}
int main()
{
char input[ 100 ];
int convert;
cout << "Please enter a number (EOF to end): ";
while ( cin >> input ) {
try{
convert=castInput(input);
cout<<"The number entered Was "<<convert;
}
catch(nonNumber& ex){
cout<<ex.what()<<endl;//what() Method contains specific
error message it is called with ex instance here
}
cout << "\n\nPlease enter a number (EOF to end): ";
}
cout << endl;
return 0;
}
Here is the output:
:
C++ with comments please! // numberverifier.cpp #include <iostream> #include <exception> using std::cout; using std::cin; using std::endl;...
Write following program using Switch statement. #include <iostream> using namespace std; int main() int number; cout << "Enter an integer cin >> number; if (number > B) cout << You entered a positive integer: " << number << endl; else if (number (8) cout<<"You entered a negative integer: " << number << endl; cout << "You entered e." << endl; cout << "This line is always printed." return 0;
#include <iostream> #include <conio.h> #include<limits> using namespace std; int main(){ char oparand, ch = 'Y'; int num1, num2, result; while(ch == 'Y'){ cout << "Enter first number: "; cin >> num1; while(1){//for handling invalid inputs if(cin.fail()){ cin.clear();//reseting the buffer cin.ignore(numeric_limits<streamsize>::max(),'\n');//empty the buffer cout<<"You have entered wrong input"<<endl; cout << "Enter first number: "; cin >> num1; } if(!cin.fail()) break; } cout << "Enter second number: "; cin >> num2; while(1){ if(cin.fail()){ cin.clear(); cin.ignore(numeric_limits<streamsize>::max(),'\n'); cout<<"You have entered wrong input"<<endl; cout <<...
#include <iostream> using namespace std; int main(void) { int SIZE; cout<<"Enter the size of the array"<<endl; cin>>SIZE; int *numlist = new int[SIZE]; // Read SIZE integers from the keyboard for (int i = 0; i<SIZE; i++ ) { cout << "Enter value #" << i+1 << ": "; cin >> numlist[i]; } // Display the numbers in a reverse order for (int i = SIZE; i > 0; i--...
Write a psuedocode for this program. #include <iostream> using namespace std; string message; string mappedKey; void messageAndKey(){ string msg; cout << "Enter message: "; getline(cin, msg); cin.ignore(); //message to uppercase for(int i = 0; i < msg.length(); i++){ msg[i] = toupper(msg[i]); } string key; cout << "Enter key: "; getline(cin, key); cin.ignore(); //key to uppercase for(int i = 0; i < key.length(); i++){ key[i] = toupper(key[i]); } //mapping key to message string keyMap = ""; for (int i = 0,j...
C++ #include <iostream> using namespace std; bool checkinventoryid(int id) { return id > 0; } bool checkinventoryprice(float price) { return price > 0; } void endProgram() { system("pause"); exit(0); } void errorID(string str) { cout << "Invalid Id!!! " << str << " should be greater than 0" << endl; } void errorPrice(string str) { cout << "Invalid Price!!!" << str << " should be greater than 0" << endl; } int inputId() {...
Use C++ #include <iostream> #include <stdlib.h> #include <stdio.h> #include <cstring> using namespace std; /I Copy n characters from the source to the destination. 3 void mystrncpy( ???) 25 26 27 28 29 11- 30 Find the first occurrance of char acter c within a string. 32 ??? mystrchr???) 34 35 36 37 38 39 / Find the last occurrance of character c within a string. 40 II 41 ??? mystrrchr ???) 42 43 45 int main() char userInput[ 81]; char...
#include <fstream> #include <iostream> #include <cstdlib> using namespace std; // Place charcnt prototype (declaration) here int charcnt(string filename, char ch); int main() { string filename; char ch; int chant = 0; cout << "Enter the name of the input file: "; cin >> filename; cout << endl; cout << "Enter a character: "; cin.ignore(); // ignores newline left in stream after previous input statement cin.get(ch); cout << endl; chcnt = charcnt(filename, ch); cout << "# of " «< ch« "'S:...
I NEED A PSEUDOCODE ALGORITHM FOR THIS CODE PLEASE C++: #include #include #include #include using namespace std; int NumOfEmployees(); int TotDaysAbsent(int); double AverageAbsent(int, int); int main() { cout << endl << "Calculate the average number of days a company's employees are absent." << endl << endl; int numOfEmployees = NumOfEmployees(); TotDaysAbsent(numOfEmployees); return 0; } int NumOfEmployees() { int numOfEmployees = 0; cout << "Please enter the number of employees in the company: "; cin >> numOfEmployees; while(numOfEmployees <= 0) { ...
#include <iostream> #include <string> using std::string; using std::cout; using std::endl; void testAnswer(string testname, int answer, int expected) { if (answer == expected) cout << "PASSED: " << testname << " expected and returned " << answer << "\n"; else cout << "FAILED: " << testname << " returned " << answer << " but expected " << expected << "\n"; } // Implement printArray here void printArray(int array[],int b) { for(int i = 0; i<b;i++) { std::cout<< array[i] << "...
#include<iostream> using namespace std; int main() { float num,avg,sum=0.0; int count=0; bool moreNumbers=true; cout<<"Enter grades:"<<endl; while(moreNumbers) { cin>>num; if(num < 0) { moreNumbers=false; } else { count = count+1; sum=sum+num; } } avg=sum/count; cout<<"Average grade:"<<avg<<endl; cout<<"How many grades were entered:"<<count<<endl; return 0; } Question: We need to add another loop to check input. Just like the input loop we already have, this one should use a boolean variable as a control. So, the logic could be something like this: Loop...