Untitled

import java.util.Scanner;

public class ProgramVIone
{
    	public static void main(String[] args) 
	{
		
		double which; 
	        switch (which) 
		{
		case 1:  System.out.print("Do you want Fahrenheit converted into Celsius.");
		break;
		case 2:   System.out.print("Do you want Celsius converted into Fahrenheit.");
		break;
		case 3:   System.out.print("Y.");
		break;
		default:  System.out.print("Invaild option, please retry.");
 		}

	System.out.print("the temperature is?");

 }
}