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- import java.util.Scanner; //Scanner for input
- //Class name
- public class TESTTEST
- {
- public static void main(String[] args)//main section
- {
- //varibles
- String speed;
- double distance;
- double time;
- //set scanner
- Scanner keyboard = new Scanner(System.in);
- //ask for the type of speed input
- System.out.println("Enter one of the following: air, water, or steel: "
- +"Enter the distance the sound wave will travel:");
- speed = keyboard.nextLine();
- distance = keyboard.nextDouble();
- if (speed.equals("air") || speed.equals("water") || speed.equals("steel"))
- //set switch
- switch (speed)
- {
- case "air":
- time = distance/1100;
- System.out.print(" It will take" + time + " seconds.");
- break;
- case "water":
- time = distance/4900;
- System.out.print(" It will take" + time + " seconds.");
- break;
- case "steel":
- time = distance/16400;
- System.out.print(" It will take" + time + " seconds.");
- break;
- default:System.out.print("Sorry, you must enter air,water,or steel.");
- }
- }
- }
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