Replaced 'element % 42 == 0' predicate with 'element % 2 == 0'

to avoid confusion
hhaaoo · Aug 17, 2017 · 3bcda37 · 3bcda37
1 parent e1f2c1c
commit 3bcda37
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Showing 3 changed files with 5 additions and 4 deletions.
diff --git a/src/i_introduction/_4_Lambdas/JavaCode4.java b/src/i_introduction/_4_Lambdas/JavaCode4.java
@@ -11,7 +11,7 @@ public boolean task4(Collection<Integer> collection) {
         return Iterables.any(collection, new Predicate<Integer>() {
             @Override
             public boolean apply(Integer element) {
-                return element % 42 == 0;
+                return element % 2 == 0;
             }
         });
     }

diff --git a/src/i_introduction/_4_Lambdas/n04Lambdas.kt b/src/i_introduction/_4_Lambdas/n04Lambdas.kt
@@ -14,7 +14,8 @@ fun example() {
 fun todoTask4(collection: Collection<Int>): Nothing = TODO(
     """
         Task 4.
-        Rewrite 'JavaCode4.task4()' in Kotlin using lambdas.
+        Rewrite 'JavaCode4.task4()' in Kotlin using lambdas:
+        return true if the collection contains an even number.
         You can find the appropriate function to call on 'Collection' by using code completion.
         Don't use the class 'Iterables'.
     """,

diff --git a/test/i_introduction/_4_Lambdas/N04LambdasKtTest.kt b/test/i_introduction/_4_Lambdas/N04LambdasKtTest.kt
@@ -6,10 +6,10 @@ import org.junit.Test
 
 class N04LambdasKtTest {
     @Test fun contains() {
-        assertTrue(task4(listOf(1, 2, 3, 126, 555)))
+        assertTrue(task4(listOf(1, 2, 3)))
     }
 
     @Test fun notContains() {
-        assertFalse(task4(listOf(44)))
+        assertFalse(task4(listOf(1, 3, 5)))
     }
 }