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Programming Megathread
Gytyyhgfffff:
i got lua today and i don't know how i was living without it
Ravencroft·:
Ravencroft
made a pretty cool program for my c++ exam today
--- Code: ---//Exam 2 - Problem 23
#include<iostream>
#include<cmath>
#include<math.h>
using namespace std;
int main()
{
//variables
float y, a, b, w, x, q, h, g;
int choice;
//menu
cout<<"This program will will calculate the value of y, w, or q for each variable's designated equation:"
<<"\n"<<"\n"
<<"Choice 1 calculates the value of y for the equation 'y=10+[(5a)/(3b)]-4b^2' when the user inputs values for a and b."
<<"\n"
<<"Choice 2 calculates the value of w for the equation 'w=6x^5-15' when the user inputs a value for x."
<<"\n"
<<"Choice 3 calculates the value of q for the equation 'q=(3/4)h-(7g/6)' when the user inputs values for h and g."
<<"\n"<<"\n"
<<"Please enter a choice number: ";
//menu selection
cin>>choice;
while(choice>3)
{
cout<<"That is an invalid selection. Please enter choice number 1-3: ";
cin>>choice;
}
//choice outputs
switch(choice)
{
case(1):
{
cout<<"You have selected choice 1."
<<"\n"<<"\n"
<<"Enter a value for a: ";
cin>>a;
cout<<"Enter a value for b: ";
cin>>b;
y=10+((5*a)/(3*b))-(4*pow(b,2));
cout<<"y="<<y<<" when a="<<a<<" and b="<<b<<" for the equation 'y=10+[(5a)/(3b)]-4b^2'.";
break;}
case(2):
{
cout<<"You have selected choice 2."
<<"\n"<<"\n"
<<"Enter a value for x: ";
cin>>x;
w=6*pow(x,5)-15;
cout<<"w="<<w<<" when x="<<x<<" for the equation 'w=6x^5-15'.";
break;}
case(3):
cout<<"You have selected choice 3."
<<"\n"<<"\n"
<<"Enter a value for h: ";
{cin>>h;
cout<<"Enter a value for g: ";
cin>>g;
q=(3/4)*h-(7*g/6);
cout<<"q="<<q<<" when h="<<h<<" and g="<<g<<" for the equation 'q=(3/4)h-(7g/6)'";}
break;}
}
//end of program
--- End code ---
Otis Da HousKat:
Not that it has a real impact on the control flow in the switch statement, but if a user enters 0 for example
while(choice>3)
will not catch it and the program will just end with no indication of what happened.
Ravencroft·:
--- Quote from: Anonymous on April 01, 2016, 09:36:56 PM ---Not that it has a real impact on the control flow in the switch statement, but if a user enters 0 for example
while(choice>3)
will not catch it and the program will just end with no indication of what happened.
--- End quote ---
Yeah I noticed that after I submitted it. Luckily we haven't started any material on loops yet. I just wanted to see if I could implement one into the program successfully since we start lecture on loops next week.
ZSNO:
--- Quote from: Anonymous on April 01, 2016, 10:14:08 PM ---Yeah I noticed that after I submitted it. Luckily we haven't started any material on loops yet. I just wanted to see if I could implement one into the program successfully since we start lecture on loops next week.
--- End quote ---
... you have a while loop in the program though