Top "Type-promotion" questions

One special case of implicit type conversion is type promotion, where the compiler automatically expands the binary representation of objects of integer or floating-point types.

"The operator can’t be unconditionally invoked because the receiver can be null" error after migrating to Dart null-safety

I'm upgrading a personal package that is based on the Flutter framework. I noticed here in the Flutter Text widget …

flutter dart type-promotion dart-null-safety
Is addition of byte converts to int because of java language rules or because of jvm?

byte a = 1; byte b = 1; byte c = a + b; Throws error: possible loss of precision byte subt = a_s - a_…

java type-conversion byte operation type-promotion
Does float always auto-convert to double when multiplying mixed data types?

In Steven Prata's book "C Primer Plus", there's a section on Type Conversions, wherein "The basic rules are" section has …

c floating-point type-promotion