Answer Posted / mfsi_chinmayb`

Hi
Dead code (a.k.a Unreachable code),as the name suggests is
the portion of the code which is never executed.
Point out the word NEVER , as the code above that made the
break before that and the execution of that never come.
Ex:
int function(a,b)
{
int z;
return a+b;
z=a*b; //It will never be executed
}

The above is the example for a Statement . There might a big
function which is never executed.In larger programs 5-10% of
dead code can be found.

Note : If a program is smaller in size error code can be
checked manually.But for larger program we have automated
tools like: TrueCoverage etc

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