add map-demo 7

README.md

@@ -107,6 +107,7 @@
 			- [MapDemo_4](./src/main/scala/ScalaBasic/MapDemo_4.scala)
 			- [MapDemo_5](./src/main/scala/ScalaBasic/MapDemo_5.scala)
 			- [MapDemo_6](./src/main/scala/ScalaBasic/MapDemo_6.scala) : map get values demo
+			- [MapDemo_7](./src/main/scala/ScalaBasic/MapDemo_7.scala) : for insert map demo
 			- [JavaMap1](./src/main/scala/ScalaBasic/JavaMap1.java) : java Map demo
 			- Scala `Map` basic op, properties
 		- HashMap

src/main/scala/ScalaBasic/MapDemo_7.scala

@@ -0,0 +1,15 @@
+package ScalaBasic
+
+// https://stackoverflow.com/questions/31345090/create-map-in-scala-using-loop
+
+object MapDemo_7 extends App {
+
+  var myMap1: Map[String, Int] = Map()
+
+  for (i <- 1 to 7){
+    println(i)
+    myMap1 += (s"key-$i" -> i)
+  }
+
+  println(myMap1.toString())
+}