Using switch case

[awaise17]

Hello every one...can anyone make the following program using switch case rather than using if conditions...

Write a program to assign letter grade to given no according to following distribution
>=85=A,75-84=B,65-74=C,50-64=D, <50=F

[TheDestroyer]

We can't do your homework. Give it a first try and we'll be glad to help.

Here's a reference

http://www.cplusplus.com/doc/tutorial/control/

[awaise17]

i am not assining the homework....its not essential to solve the problem using swtich....i can do it using if statement....but i cant find a way out using switch...thats why posted my problem here so i may be guided....please read this code and tell the mistake....the program runs but doesnt show any output



#include<iostream.h>
#include<conio.h>
#include<math.h>
main()
{
int marks;


cout<<"Enter the marks of the subject ";
cin>>marks;

switch(marks)
{
case 'marks>=85':
{
cout<<"The grade of the subject is A"
break;


}
}
getch();
}

[TheDestroyer]

switch statements are made to check equality. You can; however, always link your statement to a function that returns a value.

I, personally, don't use switch statements. I find it pointless to use it when I could use if/if else/else. The only time I used switch was when I created a table and needed to select an option for some operation... and it wasn't necessary, in fact.

[Peter87]

If you want to handle all the marks >= 85 you have to list them all.

switch (marks)
{
case 85:
case 86:
case 87:
case 88:
case 89:
...
case WHATEVER_IS_THE_MAX_SCORE:
	cout<<"The grade of the subject is A"
	break;
...

Switch statements are more useful when you are checking for specific values. Much better to use if statements in this case.

[awaise17]

thanks for the help guys...i will use if statement....as it would be weird to use case 85 case 86 and so on