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Questions tagged [inputmismatchexception]

Use this tag on questions regarding input mismatch exceptions that occur when using the `Scanner` object.

The InputMismathException is a Java I/O exception that is thrown when the Scanner object encounters an input which it does not expect. An example would be expecting a double, but receiving a String token instead. This is a runtime exeception that inherits from NoSuchElementException.

258 questions
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catch block is running multiple times for InputMismatchException

So I was using this code in my program and whenever I give input consisting of multiple words, the compiler executes the catch block that many times. I've also tried it with different methods & till now all efforts went to vain. Method 1: Scanner…
JDK
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java.util.InputMismatchException When loading from file

Hi so I am trying to use this code to read from a text file, the text file is supposed to define a pitch by checking if the string of the next line starts with either stop, play, or duration and then pass it to synth so it can play. Does anyone have…
Zoey Wilson
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How to keep catching an exception until it's correct java

I'm writing a program that uses the Scanner class and want to use a try-catch block to catch InputMismatchExceptions. This is what I have written: public class StudentInfo{ public static void main(String[] args){ Scanner scnr = new…
user2161312
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How to use an InputMismatchException object

I have an array of a specified sized created and must ask the user to enter an index and print that indexed value. However if they enter something that's not an int I need to use an InputMismatchException to check whether they've entered 'q' or 'Q'…
Shreesham Mukherjee
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How to resolve InputMismatchException?

package exercises; import java.util.*; public class Try_and_catch { public static void main(String[] args) { Scanner input = new Scanner(System.in); int x=1; do { System.out.println("Enter first…
Sandy Rosas
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3 answers

Catch isn't catching InputMismatchException?

So, I've searched around google and stackoverflow for a bit, but I can't seem to find an answer to this issue. I've got 2 methods. The first method, getAge is meant to just get an integer as input from the user. It's then meant to pass that input…
Will Troll
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How do I make sure that a string value is not passed into an int variable?

I am still very new to programming. I've only taken three programming classes, one in C++ and two in Java. I decided I wanted to build my own version of Battleship. I've more or less got the entire project finished. My issue has been providing…
Paweth
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Why try/catch InputMisMatchException doesnt work even if I import java.util.InputMisMatchException?

I am trying to write simple calculator and implement some exceptions. I want to catch exception InputMisMatchException if client will try to input letter instead number. I have already import java.util.Input... but this still doesnt work and it end…
Matirix
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Day 8: Dictionaries and Maps JAVA

I'm trying to solve this problem https://www.hackerrank.com/challenges/30-dictionaries-and-maps/problem?h_r=next-challenge&h_v=zen using linked list and ind it's successfully solved in eclipse with all the outputs correct like hackerrank ouputs but…
A.Usama
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Try Catch InputMismatchException not actually catching my Error

I have copied the exact same code from another program. Whenever inputting deliberate incorrect results the InputMismatchException still occurs and the program crashes. import java.util.*; public class Runner{ public static void main (String…
user9312408
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How to solve InputMismatchException with Integer and char?

I got this lines : while(flag==0){ try{ code=input.nextInt(); } catch(java.util.InputMismatchException z) { System.out.print("\nDigito(s) Invalidos!\n"); flag=1; } finally { …
Escaga Seen
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4 answers

Java Try and Catch inputMismatchException Error

I have the following code //Ask for weight & pass user input into the object System.out.printf("Enter weight: "); //Check make sure input is a double weight = input.nextDouble(); weight = checkDouble(weight); …
Kyl
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Try Catch Block Not Catching String Input (InputMismatchException)

I am needing to stop the user from entering a string value. Here is what I've tried so far. import java.util.InputMismatchException; import java.util.Scanner; import java.util.Random; public class guessinggame { public static void main…
sawreals
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Exception in thread "main" java.util.InputMismatchException

I`m MAC user and I have been struggling with this error. I search this error, now I just can't find solutions. Exception in thread "main" java.util.InputMismatchException at java.util.Scanner.throwFor(Scanner.java:864) at…
백지희
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Exception in thread "main" java.util.InputMismatchException when calculating Salary in Java

I'm trying to create a program where the user can calculate their daily salary based on when they arrived and left work. I have however received the same error message for the past hour, any help would be greatly appreciated. Exception in thread…
Spyro
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