91影视

Answer: To declare an array of type double and create it with the specified size provided by the user, you can follow these steps: 1. Import the Scanner class for user input: ```java import java.util.Scanner; ``` 2. Declare the class and main method: ```java public class ArraySize { public static void main(String[] args) { // Code will go here } } ``` 3. Create a Scanner object: ```java Scanner input = new Scanner(System.in); ``` 4. Ask the user for the array size and store the input: ```java System.out.print("Enter the size of the array: "); int size = input.nextInt(); ``` 5. Declare and create the array with the specified size: ```java double[] values = new double[size]; ``` The complete code would look like this: ```java import java.util.Scanner; public class ArraySize { public static void main(String[] args) { // Create a Scanner object for user input Scanner input = new Scanner(System.in); // Ask the user for the size of the array System.out.print("Enter the size of the array: "); int size = input.nextInt(); // Declare and create the array with the specified size double[] values = new double[size]; // Close the Scanner object input.close(); System.out.println("Array of size " + size + " created successfully."); } } ```