Is it necessary to write else part in every if condition?

Question

The question I asked might be closed, But i just want to know that is it necessary to write else part of every if condition. One of my senior programmer said me that \"you shoul

Answer 1

No, but I personally choose to always include encapsulating braces to avoid

if (someCondition)
    bar();
    notbar();  //won't be run conditionally, though it looks like it might

foo();

I'd write

 if (someCondition){
        bar();
        notbar();  //will be run
 }
 foo();