Merge remote-tracking branch 'origin/develop'

big-o/src/main/java/com/josdem/algorithms/LinearTimeRunner.java

@@ -0,0 +1,13 @@
+package com.josdem.algorithms;
+
+import java.util.List;
+
+/*  Type: Linear Time Algorithms – O(n)
+    Description: Linear increment amount of time based on collection size
+ */
+
+public class LinearTimeRunner {
+    public List<Integer> getEvenNumbers(List<Integer> numbers) {
+        return numbers.stream().filter(it -> it % 2 == 0).toList();
+    }
+}

big-o/src/test/java/com/josdem/algorithms/LinearTimeRunnerTest.java

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+package com.josdem.algorithms;
+
+
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+import java.util.Arrays;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+class LinearTimeRunnerTest {
+
+    private final LinearTimeRunner linearTimeRunner = new LinearTimeRunner();
+
+    @Test
+    @DisplayName("showing linear time algorithm")
+    void returnEvenNumbers() {
+        List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 0);
+        assertEquals(Arrays.asList(2, 4, 6, 8, 0), linearTimeRunner.getEvenNumbers(numbers), "should get even numbers from the array");
+    }
+}