What is wrong with my switch??

[soc86]

What is wrong with this switch in my coding, keeps stating there is a problem with (time=distance/MOTORWAY)


*/
public class Travel{

public static void main (String[]args){

char road;
double distance;
final int MOTORWAY=85;
final int A=70;
final int B=55;
final int URBAN=40;
int time;

int minutes;
int seconds;

seconds =(time*3600);
seconds = seconds%60;

minutes =time-(int)time;
minutes=minutes*60;

switch (time){

case 'm':
case 'M': time=distance/MOTORWAY;
System.out.println("To travel "+distance+ "road type m takes "+time+" seconds");

break;

case 'a':
case 'A': time= distance/A;
System.out.println("To travel "+distance+ "road type a takes "+time+" seconds");

break;

case 'b':
case 'B': time= distance/B;
System.out.println("To travel "+distance+ "road type b takes "+time+" seconds");

break;

case 'u':
case 'U': time= distance/URBAN;
System.out.println("To travel "+distance+ "road type u takes "+time+" seconds");

break;

default: System.out.println("Invalid road type x");
System.exit(0);

}

[serjant]

time=(int)(distance/MOTORWAY);

I recommend you to learn about casting.

[sai]

initialize a values to the variables distance and time and try it out

[CJSLMAN]

There are various things wrong with your program, so bear with me...

• You are trying to do calculations with variables that have not been assigns values:

case 'M': time=distance/MOTORWAY;

in this case, distance hasn't been assigned a value yet (check the rest of your program for similiar cases)

• You are trying to assign more than one value to a same variable:

seconds =(time*3600);
seconds = seconds%60;

Either you select which value the variable "seconds" is going to have or rename one of the variables. Do you mean something like the following?

seconds1 =(time*3600);
seconds2 = seconds1%60;

The "minutes" variable has this same problem.

• The case statements only work with integers, not with characters

Luck,
CJSL