java - 是否可以让一个方法只执行一次？

Question

我有一个 for 循环和这样的结构:

for(....)
....
....
if(isTrue)
... do something..
.. method to be executed once (doTrick) is declared outside for loop.
....endif
endfor

public void doTrick()
...
...
..end

for循环中的方法是否可以只执行一次？

Answer 1

当然可以!

if(!alreadyExecuted) {
    doTrick();
    alreadyExecuted = true;
}