CODEWITHSUNDEEP
javaexceptionthrowschecked-exceptions
Roam
Roam

Reputation: 4949

throws statement for handled exceptions -- Java

Suppose the following code:

public static void somMethod() throws IOException {

try {
    // some code that can throw an IOException and no other checked exceptions
} catch (IOException e) {
        // some stuff here -- no exception thrown in this block
}

}

someMethod throws an IOException, and no other checked exception, and handles that exception itself.

What exactly 

throws IOException

in its declaration is bringing in? From what I know, it is making it possible for the methods calling someMethod() handle that IOException themselves.

is anything else happening here?

Upvotes: 0

Views: 96

Answers (1)

Konstantin Yovkov
Konstantin Yovkov

Reputation: 62874

If the catch block doesn't throw IOException, the throws IOException part in the method signature is not necessary. And also, every time the someMethod() is invoked, there has to be provided a catch block for a possible exception that actually never occurs.

Upvotes: 2

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