Add Longest Word in Kotlin (#3997)

archive/k/kotlin/LongestWord.kt

@@ -0,0 +1,31 @@
+fun main(args: Array<String>) {
+
+    fun longestWord(sentence: String): Any {
+        // if sentence is empty, ask for a String
+        if (sentence.length == 0){
+            return "Usage: please provide a string"
+        } else {
+            // split sentence from these delimeters and put resulting strings into words list
+            var words = sentence.split(" ", "\t", "\n", "\r")
+            var longest = 0
+            // iterate through words list and compare each word length to longest var
+            // if word length is larger, then the var longest will be assigned the word length
+            for (word in words){
+                when {
+                    word.length > longest -> longest = word.length
+                }
+            }
+            // return var longest which holds the largest string length in the sentence parameter
+            return longest
+        }
+    }    
+
+    // if console input is null, ask for String
+    if (args.isNullOrEmpty()){
+        println("Usage: please provide a string")
+    } else {
+        // if console input is not null, then find longestWord of input String
+        println(longestWord(args[0]))    
+    }
+
+}