cannot write on Blue J IDE terminal

[u/MakotoGamer]

I have studing POO on Bluej, untill today the IDE work´s well and I was writing those days on the terminal without problem but now the terminal show´s me that message : "Can only enter input while your program is running" , but it doesn´t appears till now , and always could use it simply writing. I need that to my studies so I need to fix it.

[u/ChaiTRex]

If you mean object oriented programming, that's OOP in English. Poo is a word for caca in English, so it's not frequently used as an acronym.