Recent questions tagged java.util.scanner

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java.util.scanner - Java - Scanner - Skips over my last nextLine() request

So I instantiate the Scanner scan a lot earlier but it skips right over my second scan.nextLine() after scan. ... another = scan.nextLine(); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java.util.scanner - Why is this code getting a Java NoSuchElement exception?

I have traced through this code and can't figure out how to fix it. When running the code why ... SortAsInserted.main(SortAsInserted.java:10) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java.util.scanner - Problems with Scanner - Java

I'm trying to have the option of reading a string with multiple words, ie. Los Angeles or New York City. ... ) Enter arrival city: Kansas City See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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329 views

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java.util.scanner - Explain this line written in JAVA

In HACKERRANK this line of code occurs very frequently. I think this is to skip whitespaces but what does that " ... ( |[ u2028u2029u0085])?"); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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381 views

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java.util.scanner - How to delete a line from a text file with java using scanner

I have text file called BookingDetails.txt inside the file there's a line of records Abid Akmal 18/11/2013 ... saying record has been deleted. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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426 views

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java.util.scanner - Scanner for long integer, Exception in thread "main" java.util.InputMismatchException

I am at the last step to finalize my program, however whenever I enter my integer (long) I get a input mismatch: ... } Thank you for your time! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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491 views

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java.util.scanner - Cannot use multiple Scanner objects in Java

I have started learning Java recently. I was learning to take user input using Scanner class when I Started getting ... ones I was looking for. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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351 views

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java.util.scanner - Java Scanner(File) misbehaving, but Scanner(FIleInputStream) always works with the same file

I am having weird behavior with Scanner. It will work with a particular set of files I am using when I use the ... not sure why it doesn't now. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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465 views

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java.util.scanner - Java - Using multiple delimiters in a scanner

I'm using a scanner to take input and, hopefully, split it into chunks. I want it to split it up using ... word word word word word word ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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531 views

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java.util.scanner - Java Scanner hasNext() doesn't return false

I am trying to read input continuously from the user until the user types quit. I am testing it by just typing ' ... print bool = false; } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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483 views

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java.util.scanner throws NoSuchElementException when application is started with gradle run

I have a created a simple java "echo" application that takes a user's input and shows it back to them ... application work using gradle run? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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374 views

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java.util.scanner - Is it safe not to close a Java Scanner, provided I close the underlying readable?

If I have a method that takes a reader and I want to operate on the reader with a Scanner like so: Scanner ... safe not to close scanner here? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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323 views

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java.util.scanner - How to test for blank line with Java Scanner?

I am expecting input with the scanner until there is nothing (i.e. when user enters a blank line). How do I ... will get me stuck in the loop See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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