Parentheses

We can use parentheses to force a particular sequence of calculation, overriding the natural sequence described above. If in doubt, use parentheses!

Examples

2 * 3 + 1           
// This results in 7.
1 + 2 * 3           
// This also results in 7, since multiplication is performed before
addition.
(1 + 2) * 3         
// This results in 9, since the parentheses force the addition to
occur first.
1 + (2 * 3)         
// Generally, there's no harm in using extraneous parentheses.
(((1 + 2))) * 3      // Nor is
there any harm in using redundant parentheses.