Programming & Computer Science Answers

//3. Read in characters from the user until user enters 'z', then print out how many a's were entered

Please see the below code. However the code is not counting the number of 'a' the user has inputted.
Would I have to use array? or is there a way to do it without array if yes please help me thanks.


#include <iostream>

using namespace std;

void main ()
{

char letter;
int x=0;


cout << "Please enter letter(s): ";
cin >> letter;

while (letter=='a')
{
x = letter+1;

if (letter!= 'z')
{
cin >> letter;

}

}

cout << "The number(s) of letter 'a' entered is/are: " << x << endl;
system ("pause");

}

You were hired as a programmer by TNP (Telepono ng Pilipino) a phone company. TNP employs a metering scheme in computing the telephone bill. The metering scheme is as follows: Calls made on a weekday between 6:00 AM to 6:00 PM are charged at 2.50 pesos per minute. Charges made at other times during a weekday are charged a discounted rate of 2.00 pesos per minute. Calls made anytime on a weekend are charged a weekend rate of 1.50 pesos per minute. Your job is to write a program that will ask the user to enter the following information: (a) an integer representing the day the call was made, let 1 represent Monday, 2 represent Tuesday and so on, (b) an integer representing the time (in 24 hour format) the call started (c) an integer representing the length of time or duration of the call in minutes (assume that all calls are rounded to the next minute, i.e, a call lasting 2 minutes and 35 seconds is billed as a 3 minute call). The rate applied depends on the day the call was made and on the time the call was

Write a C++ program to input the following numbers into an array named grades: 89, 95, 72, 83, 99, 54, 86, 75, 92, 73, 79, 75, 82, 73. As each member is input, add the numbers to a total. After all numbers are input and the total is obtained, calculate the average of the numbers and use the average to determine the deviation of each from the average. Store each deviation in an array named deviation. Each deviation is obtained as the element value less the average of all the data. Have your program display each deviation alongside its corresponding element from the grades array.
Calculate the variance of the data.

, Write, compile and execute a C++ program that calculates the distance between two points whose coordinates are (7, 12) and (3, 9). When you have verified that your program works correctly, by calculating the distance between the two points manually, use your program to determine the distance between the points (-12, -15) and (22, 5).

i want to write a program in cpp and same in for android mobiles(or in java) regarding wallet management(adding /removing/editing/viewing monthly detailed expenditure)

can u plz convert this c++ program into a program for android mobiles

#include<graphics.h>
#include<fstream.h>
#include<conio.h>
#include<string.h>
#include<ctype.h>
#include<math.h>
#include<iomanip.h>
#include<stdio.h>
#include<process.h>
int a,no;
void page_1();
void page_2();
void pass();
void detail();
void info();
void enter();
void today();
void month();
void total();
void reset();
struct wallet
{long int spent;
int date,month,year;
char ph[11],name[25],add[50],des[30];
}w;
void page_1()
{clrscr();
cout<<"\n\n\n\n\n\n\n\t\t\t ßßßßß WALLET RECORD ßßßß";
cout<<"\n\n\t\t\t Developer: Ankur & Ankit";
cout<<"\n\t\t\t Programing Language: C++";
cout<<"\n\t\t\t Year: 2014-15";
cout<<"\n\n\t\t\t AT NAVY CHILDREN SCHOOL";
cout<<"\n\n\t\t\t %%%%%%%%%%%%%%%%%%%%%%%%%";
cout<<"\n\n\n\tPress enter to continue";
getch();
}
void page_2()
{clrscr();
int n;
cout<<"\n\n\t\t\t\t MENU:";
cout<<"\n\n\n\t\t\t1)Edit account details";
cout<<"\n\t\t\t2)Enter money spent today";
cout<<"\n\t\t\t3)View money spent