nested switch

[ccmac]

I am working on my website and I need some information about nested switches for C++. I am working on nesting the abbrevations of states where when the user puts in the first letter of the state it finds the state name. If anyone has an example of a nested switch or can give me some insite I would appreciate it. If anyone knows of a good website I can refer too that would also help.

Thanks

[Unregistered]

you might not need a nested switch. One thing you have to think about is multiple states with the same first letter, heres a makeshift example:

char firstletter;
string State[52];

cin >> firstletter;

switch(firstletter)
{
     case 'W':
     {
          State[0] = "Wyoming";
          State[1] = "Washington";
          // etc...
          break;
     }
      
      default:
           cout << "None of the states start with that letter." << endl;
}

// to output it

for (int N = 0; N < 52; N++)
     cout << State[N] << endl;

one problem with this is that when your outputting it will output the whole array instead of just the blocks with the states of the same letter. This is just something to start with. There are many other ways to do this.

[xlnk]

that was me above.

[White Rider]

Heres a lab i did using nested switches it might help.

/*******************************************************************
*Lab 4                                                             *
*By Whire Rider                                                    *
*                                                                  *
*Finds the name of a state from an abbreviation                    *
*                                                                  *
*******************************************************************/

#include <iostream.h>
#include <stdlib.h>

int main()
{
	char input[2];	//an array for the two letters
	
	cout<<endl  	//print out a title
		<<"\t\tFIND THE STATE NAME"<<endl
		<<"\t\t==================="<<endl<<endl;

	cout<<"Enter the state abbreviations: ";
	cin.getline(input,3);	//enter the abbreviation
	
	for(int i = 0;i<2;i++)	//make each element uppercase
		input[i] = toupper(input[i]);


	switch(input[0]) //switch for first letter
	{
	case 'M':
		switch(input[1])	//switch for second letter
		{
		case 'E':cout<<"Maine"<<endl;break;
		case 'D':cout<<"Maryland"<<endl;break;
		case 'A':cout<<"Massachusetts"<<endl;break;
		case 'I':cout<<"Michigan"<<endl;break;
		case 'N':cout<<"Minnesota"<<endl;break;
		case 'S':cout<<"Mississippi"<<endl;break;
		case 'O':cout<<"Missouri"<<endl;break;
		case 'T':cout<<"Montana"<<endl;break;
		default: cout<<"No state has the abbreviation \'"<<input<<"\'"<<endl;
		}
		break;
	case 'N':
		switch(input[1])	//switch for second letter again
		{
		case 'E':cout<<"Nebraska"<<endl;break;
		case 'V':cout<<"Nevada"<<endl;break;
		case 'H':cout<<"New Hampshire"<<endl;break;
		case 'J':cout<<"New Jersey"<<endl;break;
		case 'M':cout<<"New Mexico"<<endl;break;
		case 'Y':cout<<"New York"<<endl;break;
		case 'C':cout<<"North Carolina"<<endl;break;
		case 'D':cout<<"North Dakota"<<endl;break;
		default: cout<<"No state has the abbreviation \'"<<input<<"\'"<<endl;
		}
		break;
	default:
		cout<<"I do not know of a state that starts with an \'"<<input[0]<<"\' character"<<endl;
	}

	return 0;
}