flour >= 4 true sugar >= 2 false
Examine this part of the program:
// check that there is enough of both ingredients
if ( flour >= 4 && sugar >= 2 )
System.out.println("Enough for cookies!" );
else
System.out.println("sorry...." );
For you to have enough ingredients,
both relational expressions must be true.
This is the role of the &&
(and-operator) between the two
relational expressions.
The &&
requires that both
flour >= 4
and
sugar >= 2
are true for the entire expression to be true. The entire question must be true in order for the true branch to execute.
The and operator &&
is a
logical operator.
A logical operator examines two true/false values
and outputs a single true/false value.
What is printed
if the user enters
6 for flour
and
4 for sugar
?