#Dead Code Error

1 messages · Page 1 of 1 (latest)

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

fallow duneBOT
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pliant vigil
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When can the if be true ?

sweet glade
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no true for it

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no statement

pliant vigil
sweet glade
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I'm confused with your question

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theres no if true statement for the variables inside

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if thats what you mean

pliant vigil
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you have an if

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my question is

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when will if condition will ever be false ?

sweet glade
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Ah right

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If the input is not in the hashmaps

pliant vigil
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are you sure about that

sweet glade
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Yes

pliant vigil
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what does null + null do ?

sweet glade
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When I type in a incorrect input, i get

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GRMAN : Null

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FRENCH: Null

pliant vigil
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yes

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so

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what does null + null do ?

sweet glade
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if(result + result2 != null + null)

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this?

pliant vigil
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what does null + null do ?

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answer my question please

sweet glade
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nothing

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it does nothing?

pliant vigil
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wdym

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how can it do nothing ?

sweet glade
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what does null + null mean

pliant vigil
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let's say you write null + null in your program

sweet glade
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yes

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I get error

pliant vigil
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what does it give ?

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yes

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it errors

sweet glade
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the operator +

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when i use &&

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it strill doesnt wokr

pliant vigil
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no

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it's about null + null

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do you agree that you can't do null + null ?

sweet glade
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The Operator + is undefined for the argument type(s) Null, null

pliant vigil
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yes

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if(result + result2 != null) {

}
this is your code, and you have a condition where you add two values together

sweet glade
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right

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to check

pliant vigil
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how can result + result2 be null ?

sweet glade
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ok i removed reuslt 2

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wow

pliant vigil
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please answer my questions

sweet glade
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result + result2 is null if input is incorrect

pliant vigil
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incorrect = ?

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result == null and result2 == null ?

sweet glade
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        englishToFrench.put("hello", "salut");
        englishToFrench.put("you", "vous");
        englishToFrench.put("beer", "bière");
        englishToFrench.put("table", "tableau");
        englishToFrench.put("chair", "chaise");
        englishToFrench.put("i", "je");
        englishToFrench.put("the", "la/le");
        englishToFrench.put("cannot", "ne peux pas");
        englishToFrench.put("monitor", "surveiller");
    }

    private void fillEnglishToGerman() {
        englishToGerman.put("hello", "hallo");
        englishToGerman.put("saussage", "wurst");
        englishToGerman.put("beer", "bier");
        englishToGerman.put("table", "tisch");
        englishToGerman.put("chair", "stuhl");
        englishToGerman.put("i", "ich");
        englishToGerman.put("you", "du/sie");
        englishToGerman.put("the", "der/die/das");
        englishToGerman.put("work", "arbeit");
fallow duneBOT
sweet glade
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if it is not one of those

pliant vigil
sweet glade
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no

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it isnt

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== null

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anywhere

pliant vigil
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wdym

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how can result + result2 be null ?

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what result and result must be equal to so this condition is true ?

sweet glade
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it must be equal to a string that is in those hashmaps

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and its input

pliant vigil
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that's not my question

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if(result + result2 != null) {

}

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what result and result2 must be equal to in order for this to be false ?

sweet glade
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null

pliant vigil
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so result = null

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and result2 = null

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right ?

sweet glade
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ok

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yeah

pliant vigil
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so in this case

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if(null + null != null) {

}

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you are doing this

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do you see the problem ?

sweet glade
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mhm

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but

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then

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nvm

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but

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it work

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for only 1 null

pliant vigil
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yes

sweet glade
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2 nulls

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make a non null

pliant vigil
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no

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2 nulls cause an error

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as we saw earlier

sweet glade
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and to get around this eror

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error

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we

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how we do we do tihs

pliant vigil
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result == null && result2 == null

sweet glade
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if(result != null && result2 != null)

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thankls

sweet glade
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!solved

teal scroll