add kotlin and scala

.gitignore

@@ -1,3 +1,6 @@
 build
 results
-*.class
+*.class
+java/
+kotlin/
+scala/

count.kt

@@ -0,0 +1,8 @@
+fun main() {
+    var i = 0
+    while (i < 1_000_000_000) {
+      i++;
+    }
+
+    println(i)
+}

count.scala

@@ -0,0 +1,10 @@
+object Count {
+    def main(args: Array[String]) = {
+        var num = 0
+        while (num < 1_000_000_000) {
+          num += 1
+        }
+
+        println(num)
+    }
+}

justfile

@@ -21,20 +21,27 @@ prepare:
   mkdir {{r}} {{b}}
 
 build: prepare
-  gcc   -O3 ./count.c -o {{b}}/c-gcc
-  clang -O3 ./count.c -o {{b}}/c-clang
-  rustc -C opt-level=3 ./count.rs -o {{b}}/rust
+  gcc      -O3 ./count.c -o {{b}}/c-gcc
+  clang    -O3 ./count.c -o {{b}}/c-clang
+  rustc    -C opt-level=3 ./count.rs -o {{b}}/rust
   gfortran -O3 ./count.f90 -o {{b}}/fortran
-  javac count.java
-  echo "#!/usr/bin/env -S java count" > {{b}}/java
-  echo "#!/usr/bin/env -S ruby     \n$(cat count.rb)" > {{b}}/ruby
-  echo "#!/usr/bin/env -S python3  \n$(cat count.py)" > {{b}}/python3
-  echo "#!/usr/bin/env -S node     \n$(cat count.js)" > {{b}}/node
-  echo "#!/usr/bin/env -S deno run \n$(cat count.js)" > {{b}}/deno
-  echo "#!/usr/bin/env -S bun      \n$(cat count.js)" > {{b}}/bun
+  javac count.java -d java
+  mkdir -p scala && scalac count.scala -d scala
+  kotlinc count.kt -include-runtime -d kotlin/kotlin.jar
+  echo "#!/usr/bin/env -S scala -classpath scala Count" > {{b}}/scala
+  echo "#!/usr/bin/env -S java -jar kotlin/kotlin.jar " > {{b}}/kotlin
+  echo "#!/usr/bin/env -S java -cp java count         " > {{b}}/java
+  echo "#!/usr/bin/env -S ruby       \n$(cat count.rb)" > {{b}}/ruby
+  echo "#!/usr/bin/env -S python3    \n$(cat count.py)" > {{b}}/python3
+  echo "#!/usr/bin/env -S node       \n$(cat count.js)" > {{b}}/node
+  echo "#!/usr/bin/env -S deno run   \n$(cat count.js)" > {{b}}/deno
+  echo "#!/usr/bin/env -S bun        \n$(cat count.js)" > {{b}}/bun
   for f in {{b}}/*; do chmod +x "$f"; done
 
-run: build
+run what: build
+  {{b}}/{{what}}
+
+all: build
   #!/usr/bin/env bash
   set -euxo pipefail
   for f in {{b}}/*; do
@@ -57,6 +64,6 @@ run: build
     timers "$f" >/dev/null 2> >(jq '. += {"max_rss":'$(rg -oP '(?:max_rss:\s*)(\d+)' -r '$1')'}' "$out" | sponge "$out")
   done
 
-count: run
+count: all
   node ./scripts/summary.js > {{r}}/table.txt
   cat {{r}}/table.txt