Selection Process If … then … else...

Condition Process 2 Process 1 Y

Condition Process 1 Process 3 N

Condition Process 2 Process 1 Process 3 Y (then) N (else) If … then … else...

n>=0 Y Readln(n) Writeln(‘Positive’) Readln(n); If n >= 0 then Writeln(‘Positive’)

n>=0 N Readln(n) Writeln(‘Negative’) else Writeln(‘Negative’)

n>=0 Y Readln(n) Writeln(‘Positive’) N Writeln(‘Negative’) Readln(n); If n >= 0 then Writeln(‘Positive’) else Writeln(‘Negative’);

Selection Process If … then …

Condition Process 2 Process 1 Y If (Condition is T) then Process 2

Condition Process 1 N Process 2 If (Condition is T) then Process 2