other exercise

src/test/java/com/finance/programming/UsageOfStream.java

@@ -0,0 +1,26 @@
+package com.finance.programming;
+
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+import java.util.stream.Stream;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class UsageOfStream {
+
+    @Test
+    @DisplayName("Given a list of numbers, when filter function is applied, then should return the even numbers")
+    void creatingAnInfiniteStream(){
+        int[] actualResult =  Stream.iterate(0, x -> x + 2)
+                .limit(10)
+                .mapToInt(Integer::intValue)
+                .toArray();
+        int[] expectedResult = {0, 2, 4, 6, 8, 10, 12, 14, 16, 18};
+
+
+        assertArrayEquals(expectedResult, actualResult,
+                "The array doesn't match");
+    }
+
+}

tests.md

@@ -21,7 +21,6 @@ Description: Define a Supplier that returns a random string of 10 characters.
 ✔️ **Exercise 6: Filtering a list**
 Description: Filter a list of integers to keep only the even numbers using streams and Predicate.
 
-
 ✔️ **Exercise 7: Mapping a list**
 Description: Take a list of strings and use map to convert all strings to uppercase.
 
@@ -37,7 +36,7 @@ Description: Sort a list of strings in reverse alphabetical order using streams.
 ✔️ **Exercise 11: Using collect**
 Description: Convert a list of strings into a single comma-separated string using Collectors.joining.
 
-❌ **Exercise 12: Creating an infinite Stream**
+✔️ **Exercise 12: Creating an infinite Stream**
 Description: Use Stream.iterate to create an infinite stream of even numbers and take the first 10 elements.
 
 ❌ **Exercise 13: Using Optional**