There are a few I’m aware of:
- Rust-style
use(multiple imports per statement, renaming items usingas) - Java-style
import(single import per statement, no renaming (afaik)) - Zig-style
let xlib =(imports as assignments) - C-style
(no importing, just pastes the code of the named file)
Wow, now I have something to hold over all my Java dev friends. Thanks!
Java doesn’t have aliases, but Kotlin does! (Kotlin is just better Java)
I enjoyed playing with Kotlin on Android. Nice ergonomics.
you can also tell them java cant handle.pointers. i have worked with a lot of backend c code using c#.
not sure about the following but:
can you control how a struct is handled in memory in java? (had tto do this with a c# front end calling a credit card verifyling service/library written in c++)
do they have value types?
Java doesnt have value types or structs. You have primatives (booleans, integer types and float/double) and then everything else (even the uppercase primative types like
Boolean) are reference types, IE on the heap. For stuff that plays with pointers you generally just call into native code, get back a long (the pointer to whatever you just allocated) and you call into native code to do stuff with the pointer. Native code can make a proper java object but it’s involved and has all the same cons as allocating one in Java land.Supposedly
records (a pseudo struct) might get stronger optimization options (IE put on the stack) but fundementaly reference types are just pointers and if you get an object via constructor or parameter the language must support you putting it in global stateYou cqn’t really control the layout as that would prevent the JVM from reshaping your classes (which is a fundamental requirement for things like Dalvik (android jvm))
Conversely, I’ve written C++ code to into DLLs interop with .NET. It makes a lot of sense given what .NET was developed for.