I need a little bit of help on statements.

Question

I am developing a small code that takes user input. After that, the second input variable is then checked. Let us say that there are more than two choices. If, for example, there are three choices. I know that the first choice should be an if statement and the last one should be else. But, my question is: what is in between?

int a ;
int b ;
cin >> a ; // user inputs: 20
cin >> b ; // user inputs: 2
if ( b == 1 ) {
// code
}
???? ( b == 2 ) {
// code
}
else ( b == 3 ) {
// code
}

Answer 1

@Edwin Pratt

In short, Switch faster than else if.
If you're planning to use small amount of else if then the performance will be relatively equals, but if we're talking about much more, then switch would be faster.

http://www.blackwasp.co.uk/SpeedTestIfElseSwitch.aspx

Answer 2

else if. You can write else if statements as many as you need.

if ( b == 1 ) {
// code
}
else if( b == 2 ) {
// code
}
else if ( b == 3 ) {
// code
}
else{
// code
}

Answer 3

Thank you @Shamima Yasmin

Answer 4

@Cain Eviavar

Thank you!

May you please explain why you recommend me using switch statements?

Answer 5

@Cain Eviatar AMAZING!!!

Answer 6

in addition, I would suggest using Switch instead of a lot of else if...

Answer 7

u can use switch instead of if else

Answer 8

if/else is easier but for your scenario switch is better