Java: Compound interest problem with switch statement

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Java

Hi I'm trying to create a compound interest calculator using a switch statement which offers 4 different accounts which each hold a different interest rate the accounts are S, D, C or L. The user enters the amount they wish to place in the account then they choose which account they'd like to use and then then it should output the value after of their money after being in the account for 1 year but it's only outputting their initial amount, below is my code I appreciate any help!

import java.util.*;

public class CompoundInterest {
    public static void main(String[] args) {
    double amount;
    double rate = 0;
    double time = 1;
    char group;
    Scanner keyboard = new Scanner(System.in);
    Scanner sc = new Scanner(System.in);
    System.out.println("Please enter an amount");
    
    int p = sc.nextInt();
    
    System.out.println("Please enter an account type (S, D, C or L");
    group = keyboard.next() .charAt(0);
   
    switch(group)
    {
        case 'S' : rate = 3.0;
        break;
        case 'D' : rate = 0.5;
        break;
        case 'C' : rate = 1.5;
        break;
        case 'L' : rate = 4.0;
    }
    amount = p * Math.pow(1+rate, time);
    System.out.println("Value after one year is: " + amount +"" );
    }

}