De-compiler assigning boolean value to int data type

I am currently coding a basic terminal program, I have completed and compiled the code in intelliJ. In which i compiled the code with the IDE's compiler, i was interested into seeing what the .class file looks like. So I opened it and looked the compiled program (not the bytecode) which has simplified my .java file. In this compiled file, I've seen various changes. But then i noticed something strange, the compiled code contains something that doesn't look right to me (as a beginner).

On the right window, i initialized int type for