I need help on this problem!!

[lisarastogi]

I need help on this problem!! I have the answers but I need to know HOW to revise the code. I'm still a newbie trying to learn.

Question: Step 2: Compile the program and then run it 5 times. For each run enter the menu choice shown in the table below and write down the current output the program displays.
Run Menu choice Current output New output
1 1 You picked red. You picked red.
2 2 You picked blue. You picked blue.
3 3 You picked yellow. You picked yellow.
4 0 You picked yellow. You must choose 1, 2, or 3.
5 99 You picked yellow. You must choose 1, 2, or 3.

Step 3: Improve the program so that only 1, 2, and 3 are accepted as valid choices. Make line 24 check for a choice of 3 before printing the message on line 25. Then add a trailing else that prints a descriptive error message whenever anything other than 1, 2, or 3 is entered.

Step 4: Recompile the program and run it 5 more times, using the same 5 menu choices shown above. For each run, write down the new output the program now displays.

 
1 // PA 4 color.cpp
 2 // This program lets the user select a primary color from a menu. 
 3 // PUT YOUR NAME HERE.
 4 #include <iostream>
 5 #include <string>
 6 using namespace std;
 7 
 8 int main()
 9 {
10    int choice;    // Menu choice should be 1, 2, or 3
11    
12    // Display the menu of choices
13    cout << "Choose a primary color by entering its number. \n\n";
14    cout << "1 Red \n" << "2 Blue \n" << "3 Yellow \n";
15    
16    // Get the user's choice
17    cin >> choice;
18    
19    // Tell the user what he or she picked
20    if (choice == 1)
21       cout << "\nYou picked red.\n";
22    else if (choice == 2)
23       cout << "\nYou picked blue.\n";
24    else 
25       cout << "\nYou picked yellow.\n";
26    
27    return 0;
28 }



 

[Handy Andy]

hello lisarastogi,

Welcome to the forum.

You already have your answer to part of step 3. Line 24 should look similar to line 22. The second part of step 3 tells you what to do for line 26.

Show us what you come up with and we can work from there.

Hope that helps,

Andy