Kotlin Task

src/main/kotlin/assignment/Assignment.kt

@@ -1,4 +1,6 @@
 package assignment
+import java.io.File
+
 
 // INSTRUCTIONS:
 // 1. Read a list of student responses from text file
@@ -19,15 +21,32 @@ fun main() {
     val processedData = processResponses(responses)
     writeToFile(processedData)
 }
-
+fun tobool(s:String):Boolean{
+    return s.uppercase()=="YES"
+}
 fun readResponses(): List<Response> {
-    TODO()
+    val read: List<String> = File("responses.txt").readLines()
+    val responses = mutableListOf<Response>()
+    for (i in 1 until read.size){
+        var line=read[i]
+        line =line.replace("\\s+".toRegex()," ")//to delete multiple spaces
+        var eachColumn =line.split(" ")
+        responses.add(Response(eachColumn[2], eachColumn[3].toInt(), eachColumn[4], tobool(eachColumn[5])))
+    }
+      return responses.toList()
 }
 
 fun processResponses(responses: List<Response>): List<List<Response>> {
-    TODO()
+    return responses.filter { !it.covidPositive }.sortedWith(compareBy({it.branch},{it.name})).groupBy { it.branch}.values.chunked(3).map { it.flatten() }
 }
 
 fun writeToFile(batches: List<List<Response>>) {
-    TODO()
-}
+    val fileName = File("batches.txt")
+
+
+    batches.forEachIndexed { batchId, batch -> fileName.appendText("Batch ${batchId + 1}:\n")
+        batch.forEachIndexed { s_no, student -> fileName.appendText("${s_no+1}\t\t${student.name}\t\t${student.rollNumber}\t\t${student.branch}\n")}
+
+        fileName.appendText("\n")
+    }
+}

src/main/kotlin/assignment/batches.txt

@@ -1,25 +1,26 @@
 Batch 1:
-1.	Chloe		4283661		CHE
-2.	Jack		5672351		CHE
-3.	Emily		4736471		CIV
-4.	Jacob		3246617		CSE
-5.	Lucy		3248462		CSE
-6.	Sophia		1263612		CSE
+1		Chloe		4283661		CHE
+2		Jack		5672351		CHE
+3		Emily		4736471		CIV
+4		Jacob		3246617		CSE
+5		Lucy		3248462		CSE
+6		Sophia		1263612		CSE
 
 Batch 2:
-1.	Harry		1278934		ECE
-2.	Hazel		2361718		ECE
-3.	Angel		1317382		EEE
-4.	Jasper		2366236		EEE
-5.	Clara		4328992		MAT
-6.	Eliana		9090341		MAT
-7.	Sarah		1334921		MAT
+1		Harry		1278934		ECE
+2		Hazel		2361718		ECE
+3		Angel		1317382		EEE
+4		Jasper		2366236		EEE
+5		Clara		4328992		MAT
+6		Eliana		9090341		MAT
+7		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
+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
+