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Nested Switch

kaizerryo123 (2)
I have a problem, the code runs but when it comes to the part when you choose what type of phone. it just ends there. Help is greatly appreciated. Thanks!


Edit: fixed the things Ganado pointed out and it worked well.
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  #include <iostream>
using namespace std;
int main()
{
	int brand;
	char type, model;
	cout<<"Brand: [1] Nokia [2] Sony Ericsson [3] Motorola [4] Samsung"<<endl;
	cout<<"Enter your choice: ";
	cin>>brand;
	switch(brand)
	{
	case 1:
	cout<<"Type: [A] Camera [B] Radio/MP3 [C] 3G"<<endl;
	cout<<"Enter your choice: ";
	cin>>type;
		switch(type)
		{
		case 'A': case 'a':
			cout<<"Model: [a] N77 [b] N93 [c] N95"<<endl;
			cout<<"Enter your choice: ";
			cin>>model;
			switch(model)
			{
			case 'a': case 'A':
				cout<<"You selected the Nokia N77 Camera Phone."<<endl;
				break;
			case 'b': case 'B':
				cout<<"You selected the Nokia N93 Camera Phone."<<endl;
				break;
			case 'c': case 'C':
				cout<<"You selected the Nokia N95 Camera Phone."<<endl;
				break;
			default: 
				cout<<"Invalid Input."<<endl;
			}
			break;
			
		case 'B': case 'b':
			cout<<"Model: [a] N77 [b] N93 [c] N95"<<endl;
			cout<<"Enter your choice: ";
			cin>>model;
			
			switch(model)
			{
			case 'a': case 'A':
				cout<<"You selected the Nokia N77 Radio/MP3 Phone."<<endl;
				break;
			case 'b': case 'B':
				cout<<"You selected the Nokia N93 Radio/MP3 Phone."<<endl;
				break;
			case 'c': case 'C':
				cout<<"You selected the Nokia N95 Radio/MP3 Phone."<<endl;
				break;
			default: 
				cout<<"Invalid Input."<<endl;
			}
			break;
		case 'C': case 'c':
			cout<<"Model: [a] N77 [b] N93 [c] N95"<<endl;
			cout<<"Enter your choice: ";
			cin>>model;
			
			switch(model)
			{
			case 'a': case 'A':
				cout<<"You selected the Nokia N77 3G Phone."<<endl;
				break;
			case 'b': case'B':
				cout<<"You selected the Nokia N93 3G Phone."<<endl;
				break;
			case 'c': case 'C':
				cout<<"You selected the Nokia N95 3G Phone."<<endl;
				break;
			default: 
				cout<<"Invalid Input."<<endl;
			}
			break;
		default: 
			cout<<"Invalid Input."<<endl;
		}
		break;
	case 2:
		cout<<"Type: [A] Camera [B] Radio/MP3 [C] 3G"<<endl;
	cout<<"Enter your choice: ";
	cin>>type;
	
		switch(type)
		{
		case 'A': case 'a':
			cout<<"Model: [a] W8 [b] W995 [c] W205"<<endl;
			cout<<"Enter your choice: ";
			cin>>model;
			
			switch(model)
			{
			case 'a': case 'A':
				cout<<"You selected the Sony Ericsson W8 Camera Phone."<<endl;
				break;
			case 'b': case 'B':
				cout<<"You selected the Sony Ericsson W995 Camera Phone."<<endl;
				break;
			case 'c': case 'C':
				cout<<"You selected the Sony Erricson W205 Camera Phone."<<endl;
				break;
			default: 
				cout<<"Invalid Input."<<endl;
			}
			break;
		case 'B': case 'b':
			cout<<"Model: [a] W8 [b] W995 [c] W205"<<endl;
			cout<<"Enter your choice: ";
			cin>>model;
			
			switch(model)
			{
			case 'a': case 'A':
				cout<<"You selected the Sony Ericsson W8 Radio/MP3 Phone."<<endl;
				break;
			case 'b': case 'B':
				cout<<"You selected the Sony Ericsson W995 Radio/MP3 Phone."<<endl;
				break;
			case 'c': case 'C':
				cout<<"You selected the Sony Ericsson W205 Radio/MP3 Phone."<<endl;
				break;
			default: 
				cout<<"Invalid Input."<<endl;
			}
			break;
		case 'C': case 'c':
			cout<<"Model: [a] W8 [b] W995 [c] W205"<<endl;
			cout<<"Enter your choice: ";
			cin>>model;
			
			switch(model)
			{
			case 'a': case 'A':
				cout<<"You selected the Sony Ericsson 3G Phone."<<endl;
				break;
			case 'b': case 'B':
				cout<<"You selected the Sony Ericsson 3G Phone."<<endl;
				break;
			case 'c': case 'C':
				cout<<"You selected the Sony Ericcson 3G Phone."<<endl;
				break;
			default: 
				cout<<"Invalid Input."<<endl;
			}
			break;
		default: 
			cout<<"Invalid Input."<<endl;
		}
		break;
	case 3:
	cout<<"Type: [A] Camera [B] Radio/MP3 [C] 3G"<<endl;
	cout<<"Enter your choice: ";
	cin>>type;
	
		switch(type)
		{
		case 'A': case 'a':
			cout<<"Model: [a] Moto G [b] Moto X [c] Moto E"<<endl;
			cout<<"Enter your choice: ";
			cin>>model;
			
			switch(model)
			{
			case 'a': case 'A':
				cout<<"You selected the Moto G Camera Phone."<<endl;
				break;
			case 'b': case 'B':
				cout<<"You selected the Moto X Camera Phone."<<endl;
				break;
			case 'c': case 'C':
				cout<<"You selected the Moto E Camera Phone."<<endl;
				break;
			default: 
				cout<<"Invalid Input."<<endl;
			}
			break;
		case 'B': case 'b':
			cout<<"Model: [a] Moto G [b] Moto X [c] Moto E"<<endl;
			cout<<"Enter your choice: ";
			cin>>model;
			
			switch(model)
			{
			case 'a': case 'A':
				cout<<"You selected the Moto G Radio/MP3 Phone."<<endl;
				break;
			case 'b': case 'B':
				cout<<"You selected the Moto X Radio/MP3 Phone."<<endl;
				break;
			case 'c': case 'C':
				cout<<"You selected the Moto E Radio/MP3 Phone."<<endl;
				break;
			default: 
				cout<<"Invalid Input."<<endl;
			}
			break;
		case 'C': case 'c':
			cout<<"Model: [a] Moto G [b] Moto X [c] Moto E"<<endl;
			cout<<"Enter your choice: ";
			cin>>model;
			
			switch(model)
			{
			case 'a': case 'A':
				cout<<"You selected the Moto G 3G Phone."<<endl;
				break;
			case 'b': case 'B':
				cout<<"You selected the Moto X 3G Phone."<<endl;
				break;
			case 'c': case 'C':
				cout<<"You selected the Moto E 3G Phone."<<endl;
				break;
			default: 
				cout<<"Invalid Input."<<endl;
			}
			break;
		default: 
			cout<<"Invalid Input."<<endl;
		}
		break;
	case 4:
	cout<<"Type: [A] Camera [B] Radio/MP3 [C] 3G"<<endl;
	cout<<"Enter your choice: ";
	cin>>type;
	
		switch(type)
		{
		case 'A': case 'a':
			cout<<"Model: [a] Galaxy S [b] Galaxy Y [c] Galaxy Ace"<<endl;
			cout<<"Enter your choice: ";
			cin>>model;
			
			switch(model)
			{
			case 'a': case 'A':
				cout<<"You selected the Galaxy S Camera Phone."<<endl;
				break;
			case 'b': case 'B':
				cout<<"You selected the Galaxy Y Camera Phone."<<endl;
				break;
			case 'c': case 'C':
				cout<<"You selected the Galaxy Ace Camera Phone."<<endl;
				break;
			default: 
				cout<<"Invalid Input."<<endl;
			}
			break;
		case 'B': case 'b':
			cout<<"Model: [a] Galaxy S [b] Galaxy Y [c] Galaxy Ace"<<endl;
			cout<<"Enter your choice: ";
			cin>>model;
			
			switch(model)
			{
			case 'a': case 'A':
				cout<<"You selected the Galaxy S Radio/MP3 Phone."<<endl;
				break;
			case 'b': case 'B':
				cout<<"You selected the Galaxy Y Radio/MP3 Phone."<<endl;
				break;
			case 'c': case 'C':
				cout<<"You selected the Galaxy Ace Radio/MP3 Phone."<<endl;
				break;
			default: 
				cout<<"Invalid Input."<<endl;
			}
			break;
		case 'C': case 'c':
			cout<<"Model: [a] Galaxy S [b] Galaxy Y [c] Galaxy Ace"<<endl;
			cout<<"Enter your choice: ";
			cin>>model;
			
			switch(model)
			{
			case 'a': case 'A':
				cout<<"You selected the Galaxy S 3G Phone."<<endl;
				break;
			case 'b': case 'B':
				cout<<"You selected the Galaxy Y 3G Phone."<<endl;
				break;
			case 'c': case 'C':
				cout<<"You selected the Galaxy Ace 3G Phone."<<endl;
				break;
			default: 
				cout<<"Invalid Input."<<endl;
			}
			break;

		default: 
			cout<<"Invalid Input."<<endl;

		}
		break;
	
		default:
			cout<<"Invalid Input."<<endl;
		}
return (0);
}

Last edited on
AbstractionAnon (6954)
when you choose what type of phone. it just ends there.

And what are you expecting it to do?
When you select one of the phone models, your program falls through to line 280 and exits.
http://www.cplusplus.com/forum/beginner/1988/

Some general comments.

1) You have a lot of repeated code. When you see repeated code in your program, it's a good clue you need to move the repeated code into functions.

2) Switch statements nested three deep. Ugh. Your only saving grace here is that you have decent indentation. Generally when I need nested switch statements, I prefer to have each branch of the outer switch statement call a function dedicated to that branch. Doing that gives a meaningful name to the branch and avoids directly nesting swtch statements. Note that this ties into #1 above. If you move the repeated code into functions, you're going to reduce the depth and complexiety of your nested switch statements.


Ganado (6812)
type is an int, you're asking for a char. cin fails. Didn't check the rest, but with repeated code like that, chances are something else might be messed up. Try having functions that can...(can't think of a better word) function... on more generic inputs. Careful where you put your break statements.
Last edited on
kaizerryo123 (2)
Thank you guys! I've fixed the code and it ran well! Really thanks to you both! Will keep your tips in mind. Thanks again.
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