Java Reference
In-Depth Information
The output generated by this program is shown here:
In this case, the target of the
if
statement is a block of code and not just a single statement.
If the condition controlling the
if
is true (as it is in this case), the three statements inside
the block will be executed. Try setting
i
to zero and observe the result. You will see that the
entire block is skipped.
Ask the Expert
Q
:
Does the use of a code block introduce any run-time inefficiencies? In other
words, does Java actually execute the { and }?
A
:
No. Code blocks do not add any overhead whatsoever. In fact, because of their abil-
ity to simplify the coding of certain algorithms, their use generally increases speed
