How can I do this?? Help

Question

Im creating a program that implements a switch case, and I defined some variables in it, but when I try to extract the value of that variable outside the switch I get "variable 'x' might not have been initialized" error. Help pls.
Sorry for the bad English I speak spanish

Answer 1

Andrés Felipe González Aristizábal first define all the variables in main method of default value.

Answer 2

Prathvi thanks, I could fix it with your answer, I had defined the variables but had not given them a value in the main method

Answer 3

Could you post your code please?
But it sounds like you try to access a variable outside of its scope. A Scope is defined for example over a compound statement (with {}) and if you declare a variable in this compound statement you can not reach it after the compound statement is closed

Answer 4

not initialized:
int x;

initialized:
int x = 0;

If this does not help please share your code.

Answer 5

Try defining x outside the switch case! , It may help you plus post the code so we can understand what are you doing wrong.

Answer 6

Andrés Felipe González Aristizábal Your Welcome 🌟🌟

Answer 7

Hello Piglu

It would be nice if you did not post a sentence but summarized your sentences in one post. ;)
Please keep in mind that everyone who follows this thread will get a notification.
Thank you.

Answer 8

You can only reach a variable in its scope. A variable can only be defined once in the current local scope but if you open another and define a variable with the same name you override it in the new scope. But after the new scope is closed you can again reach the original variable.
If you have a lot of scopes opened you can always reach the variables from lower scopes if they are not overwritten

Answer 9

So if you define your variable before the switch and initialize it you can use it after the switch
But if you just define and it could be possible that its not initialized in the switch so its maybe not initialized after the switch when you want to use it.
So you at least have to initialize it with some value which will be overwritten in your switch

Answer 10

Code:

https://code.dcoder.tech/files/code/5e64493b4bb18e07edb0f5c1/jjjj

Answer 11

Saransh Agarwal i can't, I need the value of the variable in the switch case

Answer 12

Jnn i can reach a variable after the compound statement when is closed? I need to do that how can I change the code?

Answer 13

@ I can't reach the value of that variable in a different scope? With a method or something?

Answer 14

Make those variables global

Answer 15

Then you can access it from any function

Answer 16

https://code.sololearn.com/cR09kVBQl8U8/?ref=app

Answer 17

I edited your code

Answer 18

Check it out

Answer 19

Sorry about that.... From next time i will keep it in mind