My Submission for Kotlin assignment- Akshat Goel

src/main/kotlin/assignment/Assignment.kt

@@ -1,6 +1,6 @@
 package assignment
-
-// INSTRUCTIONS:
+import java.io.File
+//  INSTRUCTIONS:
 // 1. Read a list of student responses from text file
 // 2. Filter students who are not covid positive
 // 3. Sort them according to their branches, within each branch sort by names
@@ -21,13 +21,42 @@ fun main() {
 }
 
 fun readResponses(): List<Response> {
-    TODO()
-}
+    val fileName= "src/main/kotlin/assignment/responses.txt"
+    val file =File(fileName)
+    return file.readLines()
+        .drop(1)
+        .map{ val words=it.trim().split(Regex(" +"))
+            Response(
+                name= words[1],
+                rollNumber = words[2].toInt(),
+                branch = words[3],
+                covidPositive = words[4].toBoolean()
+            )
+    }
+
+    }
+
+fun processResponses(responses: List<Response>): List<List<Response>>{
+    val temp = (responses.filterNot { it.covidPositive }).sortedWith(compareBy({it.branch},{it.name}))
+
+    val temp1=((temp.groupBy{it.branch}.values).chunked(3)).map{it.flatten()}
+    print(temp1)
+    return temp1
 
-fun processResponses(responses: List<Response>): List<List<Response>> {
-    TODO()
 }
 
 fun writeToFile(batches: List<List<Response>>) {
-    TODO()
+    val fileName= "src/main/kotlin/assignment/batchesNew.txt"
+    val file = File(fileName)
+    file.createNewFile()
+    file.writeText("")
+    for (index in 0 until batches.size){
+        println(index)
+        file.appendText("Batch ${index+1}:\n")
+        for(j in batches[index].indices){
+            file.appendText("${j+1}.\t\t${batches[index][j].name}\t\t${batches[index][j].rollNumber}\t\t ${batches[index][j].branch}")
+            file.appendText("\n")
+        }
+        file.appendText("\n")
+    }
 }

src/main/kotlin/assignment/batchesNew.txt

@@ -0,0 +1,31 @@
+Batch 1:
+1.		Chloe		4283661		 CHE
+2.		Jack		5672351		 CHE
+3.		James		8429918		 CHE
+4.		Peter		3234291		 CHE
+5.		Emily		4736471		 CIV
+6.		Charles		3491897		 CSE
+7.		Jacob		3246617		 CSE
+8.		Lily		3462691		 CSE
+9.		Lucy		3248462		 CSE
+10.		Sophia		1263612		 CSE
+
+Batch 2:
+1.		Harry		1278934		 ECE
+2.		Hazel		2361718		 ECE
+3.		Oliver		2138129		 ECE
+4.		Angel		1317382		 EEE
+5.		Jasper		2366236		 EEE
+6.		Clara		4328992		 MAT
+7.		Eliana		9090341		 MAT
+8.		Sarah		1334921		 MAT
+
+Batch 3:
+1.		Kevin		4271786		 MEC
+2.		Daisy		7364891		 MIN
+3.		Daniel		8783261		 MIN
+4.		William		4662376		 MIN
+5.		Nora		4123894		 PHE
+6.		Owen		4898291		 PHE
+7.		Ryan		9071271		 PHE
+