rapidminer studio java could not be launched

* There are still some cases that are not completely avoided.

* JudgelefTright is used for judgment of the right bracket, and can be lost after the right brackets, and the two right brackets can be entered continuously. * Judgeleft is used for judgment of the left bracket, and only the right bracket can be input after entering the left parentheses, and the left parentheses can be lost after the left bracket can be lost, and two left parentheses can be continuously entered. * Judge1 is used for the judgment of the operator, which can only have a number, parentheses before the operator. * Divided into the following: numbers, calculations (+ - * /), left bracket, right bracket, point, clearing * END is used for # (end compliance) whether it can be input, # must be the correct formula, and the front one of the # is only a number or right bracket. * First of all, these Boolean variables are specifically explained: Rusult is only assigned to True after the # (end value), that is, it can only be input only after entering # =

public boolean end= false // When there is content in front, it will change it to True, and you cannot enter anything after entering. Public boolean result= false // After entering #, Result becomes true, at which time the result is calculated, it is used to determine whether it can be calculated.

Rapidminer studio java could not be launched