Is it necessary to write “{}” in if statement, if here is only two lines in it?

Question

//Example
if(x<y){
y=88
y=9}

//or

if(x<y)
y=88
y=9

Answer 1

Have you tried the comma operator? It works in some cases, like the one you have here. Helpful when you want to save some braced lines.

Eg :
#include <iostream>
using namespace std;
int main()
{
int x=1, y=2;
if(x<y) y=88,y=9;
cout<<y;
}

Answer 2

in 1st code

if( x<y ) {
y = 88;
y = 9;
}
if condition is true block of code executed
and
in 2nd code

if( x<y )
y = 88;
y = 9;
if condition is true y = 88 executed otherwise rest of flow execution ie y = 9 executed !

Answer 3

@Kishuk Vasisht
Thanks a lot!

Answer 4

That’s what I needed

Answer 5

But how much I can write in one line?

Answer 6

@Sofia S. Tkachenko
There isn't any limit to the use of the comma operator. It can be used simultaneously for 3, 4 or more lines. Its just that the operator fails when you use some type of functions like system(), exit(), etc..

Answer 7

Yes, you must if you're having multiple lines of code.

Answer 8

Thx

Answer 9

I’ve already understood)

Answer 10

But thx