Consume newline character | Java Community | Help. Code. Learn. | Page 1

errant yarrow Jun 23, 2023, 12:36 PM

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Hi, i'm trying to input some data thats in a for loop, but the second time i try to input data it skips the first one and goes to the second one. My question is how do i consume a newline character without having the user to press enter twice?

shut basaltBOT Jun 23, 2023, 12:36 PM

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TIP: Narrow down your issue to simple and precise questions to maximize the chance that others will reply in here.

somber quiver Jun 23, 2023, 1:46 PM

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Example

quiet pagoda Jun 23, 2023, 1:53 PM

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errant yarrow Hi, i'm trying to input some data thats in a for loop, but the second time i try...

If you are using a Scanner nextLine or skip will have the described behavior.

frozen slate Jun 23, 2023, 2:09 PM

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It helps if you post the code you've written.

errant yarrow Jun 23, 2023, 2:09 PM

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somber quiver Example

Media is a class that has title, year, director , actors etc .Also find Person is a method that tries to find if that spesific actor has already been added

somber quiver Jun 23, 2023, 2:11 PM

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Prefer to use nothing but nextLine()

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You've already been using Integer.parseInt(input.nextLine()) which is following that philosophy. So, be consistent and follow it always

frozen slate Jun 23, 2023, 2:12 PM

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You're using input.next() in your second screenshot in the while loop and right above it. That's causing you issues with not consuming the new line as you're wanting.

errant yarrow Jun 23, 2023, 2:13 PM

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frozen slate You're using input.next() in your second screenshot in the while loop and right ...

So how do i fix it?

frozen slate Jun 23, 2023, 2:13 PM

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Use nextLine like Kyo-chan said.

errant yarrow Jun 23, 2023, 2:14 PM

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but im trying get as input a character

frozen slate Jun 23, 2023, 2:15 PM

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Just grab the character out of the string returned by nextLine.
If you're only grabbing one character, you're not going to be consuming the new line.

somber quiver Jun 23, 2023, 2:16 PM

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(Note that next() gets the next token, not caring whether it is one character long or more. So it fails to read a character)

errant yarrow Jun 23, 2023, 2:16 PM

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So how do i do what justis said?

somber quiver Jun 23, 2023, 2:17 PM

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So, bear with me,

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You do, like, type input, followed by a dot

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And then nextLine, with the parentheses that show it's a method call

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it looks line input.nextLine()

errant yarrow Jun 23, 2023, 2:18 PM

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yes but how do i grab the character out of the string as he said?

frozen slate Jun 23, 2023, 2:18 PM

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You're already doing that with the charAt calls.

somber quiver Jun 23, 2023, 2:18 PM

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How did you do it with next()?

frozen slate Jun 23, 2023, 2:18 PM

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Just replace every next() with nextLine() and you're good to go.

errant yarrow Jun 23, 2023, 2:18 PM

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OHhhh damn, thanks

shut basaltBOT Jun 23, 2023, 2:18 PM

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errant yarrow OHhhh damn, thanks

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errant yarrow Jun 23, 2023, 2:19 PM

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sorry for these type of question i just begun learning java a few monts ago

#Consume newline character