scalac

Compile a Scala source file

$ scalac [Hello.scala]

$ scalac -d [classes/] [*.scala]

$ scalac -classpath [lib/*] [Source.scala]

$ scalac -verbose [Source.scala]

$ scalac -Xlint [Source.scala]

$ scalac -Werror [Source.scala]

$ scalac -version

scalac [options] [source files]

scalac is the compiler for the Scala programming language. It reads Scala source files (.scala) and compiles them into Java bytecode class files that run on the JVM.
By default, class files are placed in the same directory as their source files. Use -d to specify an alternate output directory or JAR file. The compiler integrates with Java classes via the classpath mechanism.
Options are categorized by prefix: -W for warnings, -V for verbose output, -X for extended options, and -Y for private/experimental options.

-d directory|jar

Specify where to place generated class files

Specify where to find user class files (colon-separated on Unix)

Override location of bootstrap class files

Specify where to find input source files

Output messages about what the compiler is doing

Emit warning and location for usages of deprecated APIs

Enable additional warnings for type erasure

Fail compilation if there are any warnings

Enable recommended additional warnings

Print product version and exit

Print synopsis of standard options

JAVA_HOME

Path to the JDK installation used by the Scala compiler.

Additional JVM options passed to the compiler process (e.g., memory settings).

The JAVAHOME environment variable must point to a valid JDK installation. JAVAOPTS can pass additional options to the underlying JVM. Scala 3 uses a different compiler with some incompatible options.

Scala was designed by Martin Odersky starting in 2001 at EPFL, with the first public release in 2004. The name stands for "scalable language." Scala 3 (Dotty) was released in 2021 with significant language improvements.

scala(1), javac(1), sbt(1), java(1)