Lamby’s Blog

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1. mChicago 11.04.07 / 4pm

   No. The compiler will be unable to work out unique signatures (or whatever they’re called) for the methods.
2. Lamby 11.04.07 / 10pm

   Mmm, correct. The “throws Exception” was just to confuse people - although the defined exception sometimes feels like part of the signature.

   So the code is incorrect because of the presence of “override-equivalent signatures.” (See
   http://java.sun.com/docs/books/jls/third_edition/html/classes.html#8.4.2 for a more formal treatment)
3. mChicago 12.04.07 / 8am

   Sorry, I am struggling to work out where an exception would be considered to be part of the signature - that would suggest that the following two would be a “good” compile:
   
private int foo ( int a ) { return 1; }
private int foo ( int a ) throws Exception { return 1; }

   Unfortunatly, Ive found a problem in C#, which is legal in terms of the language, but obviously bad:
   
class foo {
public int bar(){
return 1;
}
public static int bar() {
return 2;
}
}

   In this instance, when coding inside a function in the class, static and non-static functions can both be referenced without a this. However, in this case, it is unclear which one actually would run:
   
this.bar() == 1;
foo.bar() == 2;
bar() -> ?

   What is interesting, is that the compiler treats the two sets of results differently, and therefore the signatures do not need to be similar. The static could return a string, and the non-static an int.

   Fun.
4. manish 28.06.07 / 3am

   code will not complie
5. Lamby’s Blog » Blog Archive » Java Quiz 2 27.12.07 / 1am

   [...] it’s Java quiz time [...]

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