LAB 10.3 Using getline() & get() Exercise 1: Write a short program called readata.cpp that defines a character array last which contains 10 characters. Prompt the user to enter their last name using no more than 9 characters. The program should then read the name into last and then output the name back to the screen with an appropriate message. Do not use the getline() or get functions! Exercise 2: Once the program in Exercise 1 is complete, run the program and enter the name Newmanouskous at the prompt. What, if anything, happens? (Note that the results could vary depending on your system). Exercise 3: Re-write the program above using the getline() function (and only allowing 9 characters to be input). As before, use the character array last consisting of 10 elements. Run your new program and enter Newmanouskous at the prompt. What is the output? Exercise 4: Bring in program grades.cpp and grades.txt from the Lab 10 folder. Fill in the code in bold so that the data is properly read from grades.txt. and the desired output to the screen is as follows: The grades.txt file: Adara Starr 94 David Starr 91 Sophia Starr 94 Maria Starr 91 Danielle DeFino 94 Dominic DeFino 98 McKenna DeFino 92 Taylor McIntire 99 Torrie McIntire 91 Emily Garrett 97 Lauren Garrett 92 Marlene Starr 83 Donald DeFino 73 OUTPUT TO SCREEN DATA FILE Adara Starr has a(n) 94 average Adara Starr 94 David Starr has a(n) 91 average David Starr 91 Sophia Starr has a(n) 94 average Sophia Starr 94 Maria Starr has a(n) 91 average Maria Starr 91 Danielle DeFino has a(n) 94 average Danielle DeFino 94 Dominic DeFino has a(n) 98 average Dominic DeFino 98 McKenna DeFino has a(n) 92 average McKenna DeFino 92 Taylor McIntire has a(n) 99 average Taylor McIntire 99 Torrie McIntire has a(n) 91 average Torrie McIntire 91 Emily Garrett has a(n) 97 average Emily Garrett 97 Lauren Garrett has a(n) 92 average Lauren Garrett 92 Marlene Starr has a(n) 83 average Marlene Starr 83 Donald DeFino has a(n) 73 average Donald DeFino 73 The code of grades.cpp is as follows: #include #include using namespace std; // PLACE YOUR NAME HERE const int MAXNAME = 20; int main() { ifstream inData; inData.open("grades.txt"); char name[MAXNAME + 1]; // holds student name float average; // holds student average Lesson 10B 193 inData.get(name,MAXNAME+1); while (inData) { inData >> average; // Fill in the code to print out name and // student average // Fill in the code to complete the while // loop so that the rest of the student // names and average are read in properly } return 0; }
LAB 10.3 Using getline() & get()
Exercise 1: Write a short program called readata.cpp that defines a character
array last which contains 10 characters. Prompt the user to enter their last
name using no more than 9 characters. The program should then read the
name into last and then output the name back to the screen with an
appropriate message. Do not use the getline() or get functions!
Exercise 2: Once the program in Exercise 1 is complete, run the program and
enter the name Newmanouskous at the prompt. What, if anything,
happens? (Note that the results could vary depending on your system).
Exercise 3: Re-write the program above using the getline() function (and
only allowing 9 characters to be input). As before, use the character array
last consisting of 10 elements. Run your new program and enter
Newmanouskous at the prompt. What is the output?
Exercise 4: Bring in program grades.cpp and grades.txt from the Lab 10
folder. Fill in the code in bold so that the data is properly read from
grades.txt. and the desired output to the screen is as follows:
The grades.txt file: Adara Starr 94
David Starr 91
Sophia Starr 94
Maria Starr 91
Danielle DeFino 94
Dominic DeFino 98
McKenna DeFino 92
Taylor McIntire 99
Torrie McIntire 91
Emily Garrett 97
Lauren Garrett 92
Marlene Starr 83
Donald DeFino 73
OUTPUT TO SCREEN DATA FILE
Adara Starr has a(n) 94 average Adara Starr 94
David Starr has a(n) 91 average David Starr 91
Sophia Starr has a(n) 94 average Sophia Starr 94
Maria Starr has a(n) 91 average Maria Starr 91
Danielle DeFino has a(n) 94 average Danielle DeFino 94
Dominic DeFino has a(n) 98 average Dominic DeFino 98
McKenna DeFino has a(n) 92 average McKenna DeFino 92
Taylor McIntire has a(n) 99 average Taylor McIntire 99
Torrie McIntire has a(n) 91 average Torrie McIntire 91
Emily Garrett has a(n) 97 average Emily Garrett 97
Lauren Garrett has a(n) 92 average Lauren Garrett 92
Marlene Starr has a(n) 83 average Marlene Starr 83
Donald DeFino has a(n) 73 average Donald DeFino 73
The code of grades.cpp is as follows:
#include <fstream>
#include <iostream>
using namespace std;
// PLACE YOUR NAME HERE
const int MAXNAME = 20;
int main()
{
ifstream inData;
inData.open("grades.txt");
char name[MAXNAME + 1]; // holds student name
float average; // holds student average
Lesson 10B 193
inData.get(name,MAXNAME+1);
while (inData)
{
inData >> average;
// Fill in the code to print out name and
// student average
// Fill in the code to complete the while
// loop so that the rest of the student
// names and average are read in properly
}
return 0;
}
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 6 images
