Java Scanner String input

Question

I m writing a program that uses an Event class  which has in it an instance of a calendar  and a description of type String   The method to create an event uses a Scanner to take in a month  day  year  hour  minute  and a description   The problem I m having is that the Scanner next   method only returns the first word before a space   So if the input is  My Birthday   the description of that instance of an Event is simply  My    I did some research and found that people used Scanner nextLine   for this issue  but when I try this  it just skips past where the input should go   Here is what a section of my code looks like   System out print  Please enter the event description      String input   scan nextLine    e setDescription input   System out println  Event description    e description   e time set year  month-1  day  hour  min   addEvent e   System out println  Event     e time getTime           And this is the output I get   Please enter the event description  Event description Event  Thu Mar 22 11 11 48 EDT 2012   It skips past the space to input the description String  and as a result  the description  which is initially set to a blank space -       is never changed   How can I fix this

User · Accepted Answer

When you read in the year month day hour minutes with something like nextInt() it leaves rest of the line in the parser/buffer (even if it is blank) so when you call nextLine() you are reading the rest of this first line.

I suggest you call scan.nextLine() before you print your next prompt to discard the rest of the line.

User · Answer

use this to clear the previous keyboard buffer before scanning the string it will solve your problem scanner nextLine     this is to clear the keyboard buffer

User · Answer

Scanner ss   new Scanner System in       System out print  Enter the your Name              Below Statement used for getting String including sentence     String s   ss nextLine           Below Statement used for return the first word in the sentence     String s   ss next

User · Answer

When you read in the year month day hour minutes with something like nextInt() it leaves rest of the line in the parser/buffer (even if it is blank) so when you call nextLine() you are reading the rest of this first line.

I suggest you call scan.nextLine() before you print your next prompt to discard the rest of the line.

User · Answer

If you use the nextLine   method immediately following the nextInt   method  nextInt   reads integer tokens  because of this  the last newline character for that line of integer input is still queued in the input buffer and the next nextLine   will be reading the remainder of the integer line  which is empty   So we read can read the empty space to another string might work  Check below code   import java util Scanner   public class Solution        public static void main String   args            Scanner scan   new Scanner System in            int i   scan nextInt            Double d   scan nextDouble            String f   scan nextLine            String s   scan nextLine                 Write your code here           System out println  String      s           System out println  Double      d            System out println  Int      i

[java] Java Scanner String input

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