JAVA HELP: Please take a look****

Question

I'm creating a program compute the arrival time of a train, if you know the starting time and the distance to destination (in km). Assume that the average speed of the train is 60km/h. The start time is given as the hour (using 24h notation) and the minutes. For example, if the start time is 13:46, the user will input 13 and 46. Assume that the hour and minutes provided are valid values. The output will consist in two numbers, one for the hours and one for the minutes.
Example: if the train travels 210 km, and the start time is 10:20, then the arrival time will be 13:50 (actually two numbers representing 13h and 50min).
class average{
  public static void main(String args[]){
     we will bb taking three values from user and
     calculate the sum and average of inputs
    // declare the variable
    double distance;
    double distancehour;
    double distanceminute;
    double avgspeed= 60/60; // average speed of the train
    double time; // average of teh three values
    // promt user to enter the values
    System.out.println("Please input the distance your are travelling:");
    distance = ITI1120.readDouble();
        while (distance < 0) {
    System.out.println("Please input the hour of departure (in 24 Hour format):");
    distancehour = ITI1120.readDouble() ;
        while (h <0) // \\ (h >=24)) {
    System.out.println("Please input the minute(s) of departure (in 24 format):");
    distanceminute = ITI1120.readDouble();
        // Intermediate
    double startminutes = distancehour*60+distanceminute; //convert hour into minutes
    double converttime = distance*avgspeed; // distance of travel multiplied by avg speed
    double subtotalminutes = startminutes+converttime;
    double totalhours = subtotalminutes/60;
    double totalmins = totalhours*60;
    double totalminutes = subtotalminutes+totalmins;
      // Result
    System.out.println("Your travel time is: " +totalhours : +totalminutes);
  }What am I doing wrong? The code isn't functioning completely.

Answer 1

hi,
try this if i got right,this program will give u the desired o/p.
i think this will give u satisfaction,if i m right then rply me,
public static void main(String args[])
double distance=0;
double distancehour=0;
double distanceminute=0;
double avgspeed= 60/60; // average speed of the train
double time; // average of teh three values
System.out.println("Please input the distance your are travelling:");
distance = 90;
if(distance > 0) {
System.out.println("Please input the hour of departure (in 24 Hour format):");
distancehour = 12 ;
if (distancehour >0) // (h >=24)) {
System.out.println("Please input the minute(s) of departure (in 24 format):");
distanceminute = 34;
// Intermediate
double startminutes = distancehour*60+distanceminute; //convert hour into minutes
int hourcolp=(int) distance/60;
double mincolp= distance%60;
//double converttime = distance*avgspeed; // distance of travel multiplied by avg speed
//double subtotalminutes = startminutes+converttime;
//double totalhours = subtotalminutes/60;
//double totalmins = totalhours*60;
//double totalminutes = subtotalminutes+totalmins;
// Result
//double totalminutes = subtotalminutes+totalmins;
int totalhours = (int)distancehour+hourcolp;
int totalmins = (int)distanceminute+(int)mincolp;
totalhours= totalhours+(int)totalmins/60;
totalmins= totalmins%60;
System.out.println("Your travel time is: " totalhours ":" +totalmins);
}