未关闭课程时发出警告 [英] Force warning when class is not closed
问题描述
当我使用java.util.Scanner
或java.io.BufferedReader
之类的IO类时,Eclipse将显示警告Resource leak: 'suchAndSuch' is never closed
.在未关闭的情况下,如何使Eclipse在我自己的类中显示此警告?
When I work with IO classes like java.util.Scanner
or java.io.BufferedReader
, Eclipse displays a warning Resource leak: 'suchAndSuch' is never closed
. How can I make Eclipse display this warning for my own class when it is not closed?
我想知道的是是否存在接口或我需要实现的东西,以使我的类像IO类一样对待,以便它独立于任何一个IDE,例如当未关闭资源时,命令行javac
也会显示警告.
What I want to know is if there is an Interface or something I need to implement to make my class be treated like the IO classes, so that it's independent of any one IDE, e.g. the command line javac
also displays a warning when a resource isn't closed.
推荐答案
Eclipse对实现java.io.Closeable的任何类给出警告永不关闭"
Eclipse gives warning "never closed" for any class which implements java.io.Closeable
class X implements Closeable {
@Override
public void close() throws IOException {
}
}
...
public static void main(String[] args) throws IOException {
X x = new X(); <-- Eclipse warning
}
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