Reflect Arrays Concept Added

Author: ackwolver335

arr_reflect.java

@@ -0,0 +1,43 @@
+import java.lang.reflect.Array;
+import java.util.Arrays;
+
+class arr_reflect{
+    public static void main(String[] a){
+        // Getting the size of an array first
+        int size1 = 4;
+
+        // Declaring an actual array first
+        int[] arr1 = (int[])Array.newInstance(int.class, size1);
+        System.out.println("Array : " + Arrays.toString(arr1));
+
+        // Adding some elements to the Array created
+        Array.setInt(arr1,0,23);
+        Array.setInt(arr1,1,45);
+        Array.setInt(arr1,2,66);
+        Array.setInt(arr1,3,90);
+        System.out.println("Array after adding some elements : " + Arrays.toString(arr1));
+
+        // Retrieving the element from the Array
+        System.out.println("Retrieving a particular element from the array : " + Array.getInt(arr1,2));
+
+        // Some Methods of Reflected Arrays
+        // 1. get() : This method is used in order to get the value of the element as per the given index in the array
+        System.out.println("Getting the element of the array using get() method : " + ((int)Array.get(arr1,2)));
+
+        // 2. getBoolean() : This method is used to get the value of the specified index in the Boolean Array
+        boolean arr[] = {true,false,true,false};
+        System.out.println("Getting the value of element using getBoolean() method : " + Array.getBoolean(arr,1));
+
+        // 3. getByte() : This method is used in order to get the value of the element if the data type of array is byte
+        byte arr2[] = {'a','c','b'};
+        System.out.println("Getting the value of element using getByte() method : " + Array.getByte(arr2,0));
+
+        // 4. getLength() : This method is used to get the length of the array
+        System.out.println("Length of the first array is : " + Array.getLength(arr));
+
+        // 5. set() : This method is used in order to set a particular value of the array's element
+        System.out.println("Array Before setting the value of its element : \n" + Arrays.toString(arr));
+        Array.set(arr,2,false);
+        System.out.println("Array after changing the value of the element : " + Arrays.toString(arr));
+    }
+}