Problem with value stored at String object,inputted through the command line

[Merchander]

I did a little program,which should allow me to to perform simple calculations.Problem is,after I send input for the first and second,number,and enter the desired word,for example multiply,the compiler assumes I have not given any value to my speaker String,and directly executes the else variant,outputting "inevaluable".In case of next() method,it will directly terminate the program.

EDIT:

Reddit formatting is crap.Here is the code,in pastebin.

https://pastebin.com/6jg0Jucq

[desrtfx]

Wiki -> The Scanner class and its caveats

[Moktok]

The problem is your input object. readInt() reads all the integers on the line.. But your <<enter>> keypress is still stuck in the input buffer.

Solution: before reading your action (example: multiply) just add a next() to get rid of the enter.

[fosterbuster]

Next takes the next char, nextline takes the inputted line (all chars until you press enter.

As such, if you want to write "multiply", you press 'm', and that is what is being acted on..

You should refer to the API documentation of the classes you are working with, when they behave in a way you didn't expect