equals() on incompatible types

Question

So the problem is i get this error : equals() on incompatible types
if (YE.equals("Exam")){
System.out.println(YE.nextLine());
HEO.Salad("S");}
what should i do ?
https://code.sololearn.com/cYA002DZEcVw

Answer 1

Pretty margaret What i said is that you cannot compare a Scanner object with a String (technically java allow you to do but .equals return always false). You probably want compare any line of string (received by Scanner throught .nextLine method). For do this, you have to compare the resulting strings. ex:

String line= scanner.nextLine();
if(line.equals("angry"))
.....

Beside this, like Ipang, me also dont understanded what have to do your code

Answer 2

@Margaret I'm sorry for delay, I was fast asleep back then, unfortunately still didn't understand how the idea relate with the code, as the code doesn't seem to be doing something as you described, I'm not native English speaking either, so my English is just average : )

What @KrOW said was right, need to get a String from Scanner object nextLine() method, (let's call that "haystack") and check if it contains some specific word (let's call this "needle"), if the "needle" was found in "haystack", then we know what word to use to reply as output, based on what "needle" was found in "haystack". I hope you understand my idea : )

Thanks @KrOW, for a hand when I was not around : )

Answer 3

@Margaret some examples please ... I still don't understand, @KrOW any ideas?

Answer 4

Pretty margaret Dont worry... None was born learned 😉😉😉

Answer 5

You comparing a Scanner object (YE) with a String...

Answer 6

Pretty margaret Well, then you have to find a substring and not compare full line 😉

Answer 7

Besid @Ipang suggestion, i suppose that "YE" object is not a String

Answer 8

@Ipang ohhh i see , i just wanted to get a word and the see if the word is true then if the word is exactly the same as the one i gave it , do the other things ^^: ( sorry for my bad English , I'm actually new in this field(programming) so idk a lot about it ^^: ) and i wanted the output to String

Answer 9

@Ipang for example : you put "i'm hungry" then you get the output "you should eat" and then a list comes ... or... for example you put "it's 9 Am" then the program says "u should go to the work "

Answer 10

Ipang ???

Answer 11

KrOW ohhh i see thanks (*＾▽＾)／ i actually explained it for Ipang ... it's something like telling u what to do with the word u used ^^; for example u say "i'm hungry " then it returns "eat pizza" something like that

Answer 12

KrOW ohhh i see ! i'm learning java so i still don't know how to that ( basically i should study more ^^;) tnx again（〜^∇^)〜

Answer 13

Ipang Always ready for help if help is needed and if i can help 😉

Answer 14

KrOW yup (　＾∇＾)

Answer 15

Ipang ohhhh thank you ლ(⌒▽⌒ლ) and that's ok every human need sleep〈( ^.^)ノ

Answer 16

@Ipang done! thanks for helping me :D

Answer 17

@KrOW hmm...but i used string ... idk :(

Answer 18

@KrOW i can't ? what should i do ?

Answer 19

@Margaret maybe we can start with what output did you expect from the code, honestly I still don't understand what your intention with the code. For example, if input is x then expected output is y, something like that ...