Scanner in java won't match with my double variable

Question

I have searched for about an hour and have not yet found a solution to my problem. I am trying to use my scanner variable input to use it later into my switch argument but I currently am stuck on line two on what the correct syntax is in-order for my problem to work correctly. Here is my java problem:

//Create scanner for KW input

    Scanner kw = new Scanner(System.in);
    double kwUsed = kw;

    //Verify if KW is valid
    try
    {
        //KW used data entry
        System.out.println("Please enter KW used: ");
        kwUsed = kw.nextDouble();
        System.out.println("KW entry valid");
    }
    catch (Exception error)
    {
        System.out.println("Invalid entry");
        System.out.println(error);
    }

    //Date entry will be calculated by how much KW user enters
    switch (input)
    {
        case "2/15/13":
            double quarter1 = kwUsed * 0.10;
            break;
        case "4/15/13":
            double quarter2 = kwUsed * 0.12;
            break;
        case "8/15/13":
            double quarter3 = kwUsed * 0.15;
            break;
        case "11/15/13":
            double quarter4 = kwUsed * 0.15;
            break;
        default:
            System.out.println("Invalid date");

    }

Answer 1

Just wanted to say normally I won't just fix someones code and then paste it, but in this case I feel it's better for the OP to just see some of the small mistakes that were made rather than just ramble on and on.

import java.util.Scanner;
import java.io.IOException;
import java.io.FileReader;
import java.io.File;
import java.io.BufferedReader;

public class MainTest {
    public static void main(String[] args) {

        Scanner kw = new Scanner(System.in);
        double kwUsed = 0;

        // Verify if KW is valid
        try {

            // KW used data entry
            System.out.println("Please enter KW used: ");
            kwUsed = kw.nextDouble();
            System.out.println("KW entry valid");
        } catch (Exception error) {
            System.out.println("Invalid entry");
            System.out.println(error);
        }

        // Date entry will be calculated by how much KW user enters
        String input;
        System.out.println("Enter input case");
        input = kw.next();

        switch (input) {
        case "2/15/13":
            double quarter1 = kwUsed * 0.10;
            break;
        case "4/15/13":
            double quarter2 = kwUsed * 0.12;
            break;
        case "8/15/13":
            double quarter3 = kwUsed * 0.15;
            break;
        case "11/15/13":
            double quarter4 = kwUsed * 0.15;
            break;
        default:
            System.out.println("Invalid date");

        }
            //handle your quarter1-4 here
    }
}