[BAEL-9396] Add Samples (#18715)

Author: LeoColman

core-java-modules/core-java-arrays-operations-basic-3/src/main/java/com/baeldung/array/remove/RemoveElementFromArrayNativeJava.java

@@ -0,0 +1,32 @@
+package com.baeldung.array.remove;
+
+import java.util.stream.IntStream;
+
+public class RemoveElementFromArrayNativeJava {
+    static int[] removeWithLoop(int[] source, int index) {
+        int[] result = new int[source.length - 1];
+        for (int i = 0, j = 0; i < source.length; i++) {
+            if (i == index) {
+                continue; // skip the element we are removing 
+            }
+            result[j++] = source[i];
+        }
+        return result;
+    }
+
+    static int[] removeWithArrayCopy(int[] source, int index) {
+        int elementsBefore = index;
+        int elementsAfter = source.length - index - 1;
+        int[] result = new int[source.length - 1];
+        System.arraycopy(source, 0, result, 0, elementsBefore);
+        System.arraycopy(source, index + 1, result, index, elementsAfter);
+        return result;
+    }
+
+    static int[] removeWithStream(int[] source, int index) {
+        return IntStream.range(0, source.length)
+                .filter(i -> i != index)
+                .map(i -> source[i])
+                .toArray();
+    }
+}