I've done the following program that converts temperatures, Fahrenheit to Celsius and vice versa. #include using namespace std; int ConvertedTemp(int, char); void PrintMenu(); int main () { char letter; // Place to store input letter int tempIn; // Temperature to be converted PrintMenu(); cin >> letter; while(letter != 'Q') { if (letter =- ‘R’) PrintMenu(); else { cout > tempIn; if (letter == 'F') cout > letter; } //end of while return 0 ; } int ConvertedTemp(int tempIn. char letter) { if (letter == ‘C’) return (9 * tempIn / 5) + 32; else return 5 * (tempIn - 32) / 9; } void PrintMenu() { cout “Input Menu” endl endl; cout “F: Convert from Fahrenheit to Celsius” endl; cout “C: Convert from Celsius to Fahrenheit” endl; cout “R: Reprint the menu” endl; cout “Q: Quit” endl; cout “Type a C, F, R or Q; then press return.” endl; } How do I use switch statements instead of if statements in this program?

while(1){ //program never exits this loop cin >> letter; switch(letter){ case 'q': exit(0); break; case'r': PrintMenu(); break; case'c': //Code to convert temp break; case 'f': //Code to convert temp break; default: //what to do if another letter was typed }//end switch }//end while Hope this helps

How do I put that into my existing code? I seem to be getting alot of errors.

Just replace the while loop. What errors do you get?

I've made a more working example: // Program Convert converts a temperature in Fahrenheit to // Celsius or a temperature in Celsius to Fahrenheit // depending on whether the user enters an F or a C.. #include using namespace std; int ConvertedTemp(int, char); void PrintMenu(); int main () { char letter; // Place to store input letter int tempIn; // Temperature to be converted PrintMenu(); cin >> letter; while (letter != 'Q') { if (letter == 'R') PrintMenu(); cout > tempIn; if (letter == 'F') cout > letter; } return 0; } // ******************************************* int ConvertedTemp(int tempIn, char letter) { if (letter == 'C') return (9 * tempIn / 5) + 32; else return 5 * (tempIn - 32) / 9;} // ******************************************* void PrintMenu() { cout "Input Menu" endl endl; cout "F: Convert from Fahrenheit to Celsius" endl; cout "C: Convert from Celsius to Fahrenheit" endl; cout "R: Reprint the menu" endl; cout "Q: Quit" endl; cout "Type a C, F, R or Q; then press return." endl; } Its basically the if-else part thats confusing me. If it was straight if-dosomething() - it would be easy.

switch looks much nicer than a bunch of if and else if statements while(1) { switch(letter) //letter switched each case { //case is like any if statement //case Q is like if(letter == 'Q') //but you can make it easier by putting //multiple cases before you do your task and //break case 'Q': case 'q': cout {{ "Quit" {{ endl; //do something exit(0); //this will exit the program case 'F': case 'f': ConvertTemp() //do conversion break; //break out of switch case 'C': ......and so on...and make sure there is a break after each case default: //error checking printf("Not a letter choice"\n"); break; } }

synk your working example actually doesnt work :P becaaaauseeeee.. you didnt include your iostream, this will cause the compiler or linker im not sure which one but one of em will throw an error whereever you make a cout, or cin statement, i dont even think the switch would work lol All cout statements must also have " using namespace std; int ConvertedTemp(int, char); void PrintMenu(); int main () { bool b = true; bool b2 = false; char letter; // Place to store input letter char Units; int tempIn, tempOut; PrintMenu(); do{ b2 = false; cin >> letter; switch(letter) { case 'q':case 'Q': b = false; break; case'r':case'R': PrintMenu(); b2 = true; break; case'c':case'C': Units = 'F'; cout > tempIn; tempOut = ConvertedTemp(tempIn,letter); break; case 'f':case'F': Units = 'C'; cout > tempIn; tempOut = ConvertedTemp(tempIn,letter); break; default: cout "Error: Must Enter a Menu Item" endl; }//end switch }while(b2); if(b) { cout "Your Converted Temperature is " tempOut " degrees " Units endl; } return 0 ; } int ConvertedTemp(int tempIn, char letter) { int iTemp = 0; if ((letter == 'C')||(letter == 'c')) iTemp = (9 * tempIn / 5) + 32; else if((letter == 'F')||(letter == 'f')) iTemp = 5 * (tempIn - 32) / 9; return iTemp; } void PrintMenu() { cout "Input Menu" endl endl; cout "F: Convert from Fahrenheit to Celsius" endl; cout "C: Convert from Celsius to Fahrenheit" endl; cout "R: Reprint the menu" endl; cout "Q: Quit" endl; cout "Type a C, F, R or Q; then press return." endl; }