To all of those who are im sure sick of me and all my questions, heres one more.

Here is my program, remember this is my first menu type and i am getting errors compiling it. Could some help me out?

Code:

#include <iostream.h>
int main()
{
int resp, x, a;
float num, val;
char num2, cont;
for(;;)
x = 0;
{
cout << " Conversion Program" << endl;
cout << " ==================" << endl;
cout << " Option Description" << endl;
cout << " ------ ---------------------" << endl;
cout << " 0 Quit" << endl;
cout << " 1 Binary - Decimal" << endl;
cout << " 2 Decimal - Binary" << endl;
cout << " Please choose an option." << endl;
cin >> resp;
if (resp == 0)
break;
switch(resp)
{
case 1:
cout << "Binary - Decimal..." << endl;
cout << "Enter the number needing converting:" << endl;
cin << num;
Val = (Num / 10000000.0);
if(Val >= 1.0)
{
cout << "Has to be under 8 numbers long!" << endl;
break;
}
else
a= num % 10;
if (a = 1)
{
x = x + 1;
}
num2 = num2 / 10;
a= num % 10;
if (a = 1)
{
x = x + 2;
}
num2 = num2 / 10;
a= num % 10;
if (a = 1)
{
x = x + 8;
}
num2 = num2 / 10;
a= num % 10;
if (a = 1)
{
x = x + 16;
}
num2 = num2 / 10;
a= num % 10;
if (a = 1)
{
x = x + 32;
}
num2 = num2 / 10;
a= num % 10;
if (a = 1)
{
x = x + 64;
}
num2 = num2 / 10;
a= num % 10;
if (a = 1)
{
x = x + 128;
}
cout << "The number in Decimal is: " << x;
break;
case 2:
cout << "Decimal - Binary..." << endl;
cout << "Enter the number needing converting:" << endl;
cin << num;
if (num > 255)
{
cout << "Number cannot be larger than 255!" << endl;
break;
}
if (num >= 1)
{
num = num - 1;
x = x + 1;
}
if (num >= 2)
{
num = num - 2;
x = x + 10;
}
if (num >= 4)
{
num = num - 4;
x = x + 100;
}
if (num >= 8)
{
num = num - 8;
x = x + 1000;
}
if (num >=16)
{
num = num - 16;
x = x + 10000;
}
if (num >= 32)
{
num = num - 32;
x = x + 100000;
}
if (num >= 64)
{
num = num - 64;
x = x + 1000000;
}
if (num >= 128)
{
num = num - 128;
x = x + 10000000;
}
cout << "The number in Binary is: " << x;
break;
default;
cout << "Invalid Response!!" << endl;
break;
cout << "Type a 'c' to continue..." << endl;
cin >> cont;
}
return 0;
}

Thanks