CS2012 HW Review

Array.java

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+import java.util.Scanner;
+public class Array {
+    public static void main(String[] args) {
+        double[] arr = CreateArray();
+        System.out.println("The array values are: ");
+        PrintArray(arr);
+        System.out.println("The cube of each value in the array is: ");
+        CubeArray(arr);
+        System.out.println("The array values are still: ");
+        PrintArray(arr);
+        System.out.println("The array values after changing values > 13 to 13 are: ");
+        Change13(arr);
+        PrintArray(arr);
+        double[] cpyarr = ModifyArray(arr);
+        System.out.println("The original array values are: ");
+        PrintArray(cpyarr);
+        System.out.println("The modified array values are: ");
+        PrintArray(arr);
+    }
+ 
+    public static double[] CreateArray() {
+        Scanner input = new Scanner(System.in);
+        double[] arr = new double[10];
+        for (int i = 0; i < arr.length; i++) {
+            System.out.println("Enter a non-negative double: ");
+            double check = input.nextDouble();
+            if (check < 0) {
+                System.out.println("Invalid input. Enter a non-negative double: ");
+                i--;
+            } else {
+                arr[i] = check;
+            }
+        }
+        input.close();
+        return arr;
+    }
+
+    public static void CubeArray(double[] arr) {
+        for (double value : arr) {
+            double cube = Math.pow(value, 3);
+            System.out.println(value + " cubed is " + cube);
+        }
+    }
+    
+    public static void Change13(double[] arr) {
+        for (int i = 0; i < arr.length; i++) {
+            if (arr[i] > 13) {
+                arr[i] = 13;
+            }
+        }
+    }
+
+    public static double[] ModifyArray(double[] arr) {
+        double[] cpyarr =arr.clone();
+        for (int i = 0; i < arr.length; i++) {
+            arr[i] = arr[i] / 42;
+        }
+        return cpyarr;
+    }
+    
+    public static void PrintArray(double[] arr) {
+        for (double value : arr) {
+            System.out.println(value);
+        }
+    }
+}