Migrated scala-core-7 to scala3

Author: yadavan88

build.sbt

@@ -55,7 +55,12 @@ lazy val scala2_core = (project in file("scala-core-modules/scala2-core"))
     libraryDependencies ++= scalaTestDeps,
     libraryDependencies += jUnitInterface,
     libraryDependencies += scalaReflection,
-    libraryDependencies += "org.scala-lang.modules" %% "scala-xml" % "2.2.0"
+    libraryDependencies += "org.scala-lang.modules" %% "scala-xml" % "2.2.0",
+    libraryDependencies += "com.github.scopt" %% "scopt" % "4.1.0",
+    libraryDependencies += "org.rogach" %% "scallop" % "5.0.1",
+    libraryDependencies += "org.backuity.clist" %% "clist-core" % "3.5.1",
+    libraryDependencies += "org.backuity.clist" %% "clist-macros" % "3.5.1" % "provided",
+    libraryDependencies += "args4j" % "args4j" % "2.33"
   )
 
 lazy val scala_core_4 = (project in file("scala-core-modules/scala-core-4"))
@@ -86,13 +91,9 @@ lazy val scala_core_6 = (project in file("scala-core-modules/scala-core-6"))
 lazy val scala_core_7 = (project in file("scala-core-modules/scala-core-7"))
   .settings(
     name := "scala-core-7",
+    scalaVersion := scala3Version,
     libraryDependencies ++= scalaTestDeps,
     libraryDependencies += jUnitInterface,
-    libraryDependencies += "com.github.scopt" %% "scopt" % "4.1.0",
-    libraryDependencies += "org.rogach" %% "scallop" % "5.0.1",
-    libraryDependencies += "org.backuity.clist" %% "clist-core" % "3.5.1",
-    libraryDependencies += "org.backuity.clist" %% "clist-macros" % "3.5.1" % "provided",
-    libraryDependencies += "args4j" % "args4j" % "2.33"
   )
 
 lazy val scala_core_8 = (project in file("scala-core-modules/scala-core-8"))

scala-core-modules/scala-core-7/README.md

@@ -2,7 +2,6 @@
 
 - [Type Inference in Scala](https://www.baeldung.com/scala/type-inference)
 - [The return Keyword in Scala](https://www.baeldung.com/scala/return-keyword)
-- [Reading Command-Line Arguments in Scala](https://www.baeldung.com/scala/read-command-line-arguments)
 - [Copy an Array to Another in Scala](https://www.baeldung.com/scala/array-copy)
 - [Initializing an Array in Scala](https://www.baeldung.com/scala/array-initialize)
 - [Count All Occurrences of a char Within a String in Scala](https://www.baeldung.com/scala/string-char-count)

scala-core-modules/scala-core-7/src/main/scala-2/com/baeldung/scala/applyfunction/ApplyFunction.scala renamed to scala-core-modules/scala-core-7/src/main/scala/com/baeldung/scala/applyfunction/ApplyFunction.scala

@@ -3,3 +3,4 @@
 - [Preserving Type Information at Runtime in Scala](https://www.baeldung.com/scala/type-information-at-runtime)
 - [Type Disjunction (Union Types) in Scala](https://www.baeldung.com/scala/type-disjunction)
 - [Implicit Conversions](https://www.baeldung.com/scala/implicit-conversions)
+- [Reading Command-Line Arguments in Scala](https://www.baeldung.com/scala/read-command-line-arguments)