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Write a program that will input letter grades (A, B, C, D, F), the number of which is input by the user (a maximum of 50 grades). The grades will be read into an array. A function will be called five times (once for each letter grade) and will return the total number of grades in that category. The input to the function will include the array, number of elements in the array and the letter category (A, B, C, D or F). The pro- gram will print the number of grades that are A, B, etc.

Respuesta :

MrRoyal

Answer:

In Java:

import java.util.*;

public class Main{

public static int countgrades(char[]letterGrades,char Grade, int lent){

    int count = 0;

    for(int i =0;i<lent;i++){

        if(letterGrades[i]==Grade){

            count++;         }     }

    return count;

}

public static void main(String[] args) {

 Scanner input = new Scanner(System.in);

 int lent;

 System.out.print("Length: ");

 lent = input.nextInt();

 while(lent >30 || lent<1){

     System.out.print("Invalid input\nLength: ");

     lent = input.nextInt();  }

 char[] letterGrades = new char[lent];

 for(int i  =0; i<lent;i++){

     letterGrades[i] = input.next().charAt(0);

 }

 char[] letters = {'A','B','C','D','F'};

 for(char i:letters){

     System.out.println(i+": "+countgrades(letterGrades,i, lent));

 }

}

}

Explanation:

See attachment where I I used comment to explain each lin e

Ver imagen MrRoyal

Following are the code to the given question:

Program Explanation:

  • Include header file.
  • Defining a method "count_Char" that takes three variable in the parameter that are "g as character array, x as integer variable, and a character variable l".
  • Inside the method two integer variable "i,s" is declared.
  • In the next step, a for loop is declared that use if block that checks input value is in array and return incremented s value.
  • In the next line, a main method is declared inside this two integer variable "i,x" and  two character array is declared that inputs value, and define a loop that call the above method, and print its value.

Program:

#include <iostream>//header file

using namespace std;

int count_Char(char g[], int x, char l)//defining a method count_Char that takes 3 variable in parameter

{

int i,s=0;//defining integer variable

for(i=0;i<x;i++)//defining for loop that checks input value find in array

{

  if(g[i]==l)//defining if block that check value is in array

   {  

       s++;//incrementing s value by 1

   }

}

return s;//return s value

}  

int main()//defining main method

{

int i,x;//defining integer variable

char g[50],l[5]={'A','B','C','D','F'};//defining 2 character array

cout<<"Please input the number of grades to be read in.(1-50): ";//print message

cin>>x;//input integer value

cout<<"all grades must be upper case A B C D or F\n";//print message

for(i=0;i<x;i++)//defining loop that Input array value

{

cout<<"Input a grade: ";//print message

cin>>g[i];//input array value

}

for(i=0;i<5;i++)//defining loop that prints array value and prints its match value

{  

cout<<"Number of "<<l[i]<<"s ="<<count_Char(g,x,l[i])<<endl;//prints array value with matched value

}

return 0;

}

Output:

Please find the attached file.

Learn more:

brainly.com/question/19512947

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