#How do I count how many 0's are in a scanner?

39 messages · Page 1 of 1 (latest)

wise kraken
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Hi guys i am very confused about this question my teacher is asking, basically here is what they provide us a list of and we need to return how many int 0's there are, which is two.

hello
0
10
0.0
string0
0

lilac frostBOT
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wise kraken
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and then they give us this line

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which is like a string right?

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kinda?

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so im thinking i need to use a delimiter or split/trim functions

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but idk where to start this

cloud osprey
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The entire point of Scanner is that it delimits them for you. Just call next()

wise kraken
cloud osprey
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There are many approaches, but you could try hasNextInt() and hasNextDouble() before hasNext()

wise kraken
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like int double string

cloud osprey
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has-stuff checks whether the String that would be obtained with next() has a format that works for the mentioned stuff

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If you want to read with the conversion, it's nextInt() or nextDouble() and so on

wise kraken
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so nextInt but it also has to be 0

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hm

cloud osprey
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if hasNextInt() => if nextInt() == 0

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For example. I'm not entirely sure what counts as a zero in the assignmet

wise kraken
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just the int 0

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not 0.0 or string0 or whatever

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so while scan.hasnext

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and then if scan.hasnextint?

cloud osprey
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Then just read the String without caring whether it's an int, double, word or whatever

wise kraken
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ok maybe my code on top doesnt make sense and im just experimenting

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but with this print statement

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how do i get it to recognize that scan =2?

wise kraken
cloud osprey
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No... it's just you shouldn't call hasNextInt() because you don't care about ints

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You care about when something has nothing but just one zero

wise kraken
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does this look at all right?

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but my counter still says 0

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o

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wrong ==

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.equals since its a string