1. Write an IF statement that prints the message “ The number is valid ” if the
ID: 3668108 • Letter: 1
Question
1. Write an IF statement that prints the message “The number is valid” if the variable temperature is within the range -50 through 150 (inclusive)
2. Convert the following IF – ELSE – IF statement into a SWITCH statement – (3 points)
if (choice == 1)
{
cout << fixed << showpoint << setprecision(2);
}
else if (choice == 2 || choice == 3)
{
cout << fixed << showpoint << setprecision(4);
}
else if (choice == 4)
{
cout << fixed << showpoint << setprecision(6);
}
else
{
cout << fixed << showpoint << setprecision(8);
}
3. Find the errors and correct them
// This program uses an if/else if statement to assign a letter grade
// (A, B, C, D or F) to a numeric test score.
#include <iostream>
using namespace std;
void main( )
{
int testScore;
cout << “Enter your test score and I will tell you” << endl;
cout << “the letter grade you earned: “;
cin >> testScore;
if (testScore < 60)
cout << “Your grade is F.” << endl;
else if (testScore < 70)
cout << “Your grade is D.” << endl;
else if (testScore < 80)
cout << “Your grade is C.” << endl;
else if (testScore < 90)
cout << “Your grade is B.” << endl;
else
cout << “That is not a valid score.” << endl;
else if (testScore <= 100)
cout << “Your grade is A.” << endl;
}
Explanation / Answer
Multiple Questions : Answering 1st .
if (temperature > -50 && temperature <= 150) // 150 inclusive
cout<<"The number is valid";
---------------------------------------------------
if (temperature > -50 && temperature <= 150)
cout<<"The number is valid";
else
cout<<"The number is invalid";
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