Add more operations

Author: pambrose

src/main/kotlin/org/athenian/EagerNumberEval.kt

@@ -3,10 +3,8 @@ package org.athenian
 fun main() {
     val lst = listOf(1, 2, 3, 4, 5)
     val lstMapped =
-        lst.map {
-            println("Processing $it")
-            it * it
-        }
+        lst.onEach { println("Processing $it") }
+            .map { it * it }
     println("Before sum")
     val sum = lstMapped.sum()
     println("Sum = $sum")

src/main/kotlin/org/athenian/EagerPeopleEval.kt

@@ -14,15 +14,13 @@ fun main() {
     println(
         people
             .filter { it.age > 30 }
+            .onEach { println("First map evaluating $it") }
             .map {
-                println("First map evaluating $it")
                 it.name
                     .split(" ")
                     .map { name -> name[0] }
                     .joinToString("")
             }
-            .map {
-                println("Second map evaluating $it")
-                it.toUpperCase()
-            })
+            .onEach { println("Second map evaluating $it") }
+            .map { it.toUpperCase() })
 }

src/main/kotlin/org/athenian/LazyNumberEval.kt

@@ -3,10 +3,8 @@ package org.athenian
 fun main() {
     val seq = sequenceOf(1, 2, 3, 4, 5)
     val seqMapped =
-        seq.map {
-            println("Processing $it")
-            it * it
-        }
+        seq.onEach { println("Processing $it") }
+            .map { it * it }
     println("Before sum")
     val sum = seqMapped.sum()
     println("Sum = $sum")

src/main/kotlin/org/athenian/LazyPeopleEval.kt

@@ -5,17 +5,15 @@ fun main() {
         people
             .asSequence()
             .filter { it.age > 30 }
+            .onEach { println("First map evaluating $it") }
             .map {
-                println("First map evaluating $it")
                 it.name
                     .split(" ")
                     .map { name -> name[0] }
                     .joinToString("")
             }
-            .map {
-                println("Second map evaluating $it")
-                it.toUpperCase()
-            }
+            .onEach { println("Second map evaluating $it") }
+            .map { it.toUpperCase() }
             .toList()
     )
 }

src/main/kotlin/org/athenian/NumbersGenerator.kt

@@ -25,7 +25,25 @@ fun main() {
         print("$i ")
     println()
 
-    println("Even numbers <= 10: ${evenNumbers(10).toList()}")
+    print("Even numbers <= 10: ")
+    evenNumbers(10).forEach { print("$it ") }
+    println()
 
+    println("Even numbers <= 10: (${evenNumbers(10).joinToString(", ")})")
+
+    println("Even numbers <= 10: ${evenNumbers(10).toList()}")
     println("Odd numbers <= 10: ${oddNumbers(10).toList()}")
+
+
+    println("Min even number <= 10: ${evenNumbers(10).min()}")
+    println("Max even number <= 10: ${evenNumbers(10).max()}")
+    println("Count even number <= 10: ${evenNumbers(10).count()}")
+    println("Average of even numbers <= 10: ${evenNumbers(10).average()}")
+    println("First even number <= 10: ${evenNumbers(10).first()}")
+
+    // Boolean operations
+    println("Any even numbers <= 10 <= 6: ${evenNumbers(10).any { it <= 6 }}")
+    println("All even numbers <= 10 <= 6: ${evenNumbers(10).all { it <= 6 }}")
+
+    println("All numbers <= 10 ${evenNumbers(10).plus(oddNumbers(10)).sorted().toList()}")
 }