cant override equals()

[lavish basin]

<@&987246399047479336> please have a look, thanks.

[lavish basin]

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[compact sun]

my syntax is identical

why wont it let me override

[wanton forge]

It's Object, not Point

[compact sun]

yeah but Point is an object

idk how else im supposed to pass it in

[wanton forge]

doesn't matter, you must use Object

[compact sun]

is there a way to cast it afterwards back to point

so i can use Point methods

[wanton forge]

are you using vascode ?

[compact sun]

yeah

[wanton forge]

do you have java plugins enabled ?

[compact sun]

yeah

[wanton forge]

then click on the hints on the class header

then generate hashcode and equals

[compact sun]

just shows this

[wanton forge]

on the class itself

not the method

[compact sun]

ah

oh nice

[wanton forge]

can you show the generated code ?

[wanton forge]

so as you can see

first it checks this == obj

this is not needed but is a shortcut

since if it is true, then it's the same object and so it is equal

then it checks to null, if the other is null, then it can't be equal

[compact sun]

I think it makes sense

[wanton forge]

then it compares the classes

so it checks if both are the class Point

note that there are two approaches

getClass() != obj.getClass()
or
!(obj instanceof Point)

[compact sun]

I prefer instance of

[wanton forge]

the second is also true if it is an inherited class from Point

and then there is a cast

and then the fields checks

also note that here it is using a weird method to compare the floats

the reason is because of NaN

it's a very special case

but NaN == NaN is false

so if you use ==, it wouldn't work

so it converts to bits first

but that's a case specific to float and double, usually you use == or .equals

@compact sun

[compact sun]

got it

the whole syntax is kind of weird

but ye

[wanton forge]

also note that float and doubles do a lot of rounding

so it will rarely be true