Enter characters into windows in real time with Processing

PROCESSING does not allow standard instructions to process Japanese input via IME.If you want to accept Japanese input through PROCESSING, you will have to use Swing/AWT.Let's google with keywords such as Swing Java.If you read the technical information you have searched, but it is still difficult for you to create a program that accepts Japanese input.If you really want to use PROCESSING to achieve Japanese input, I recommend you to learn about Java and GUI.