Int cannot be dereferenced

[Mark Kaichou]

I've been spending hours and hours trying to figure what have I done wrong to no avail, I've spent a load of time online trying to figure it out but I still can't!!!
Error's at line 154 :/

/
**
 * @(#)Triathlon Timing.java
 *
 *
 * @author
 * @version 1.00 2012/1/17
 */
import java.util.*;
import java.text.*;

public class Triathlon
{
 static char choice=' ';
 static Scanner input = new Scanner(System.in).useDelimiter("\r\n");
 static String[] name = new String[10];
 static int[] runMinutes = new int[10];
 static int[] runHours = new int[10];
 static int[] runSeconds = new int[10];
 static int[] swimHours = new int[10];
 static int[] swimMinutes = new int[10];
 static int[] swimSeconds = new int[10];
 static int[] cycleHours = new int[10];
 static int[] cycleMinutes = new int[10];
 static int[] cycleSeconds = new int[10];
 static int[] totalSwimSeconds = new int[10];
 static int[] totalCycleSeconds = new int[10];
 static int[] totalRunSeconds = new int[10];
 static int[] totalSeconds = new int[10];
 static int[] totalTiming = new int[10];
 static int[] totalTimingHours = new int[10];
 static int[] totalTimingMinutes = new int[10];
 static int[] totalTimingSeconds = new int[10];
 static int i = 0;
    public static void main(String[] args) throws Exception
    {
    int participants = 0;
    int remainder;
      do
      {
   		 System.out.println("**********Triathlon Timing**********");
   		 System.out.println("1) Enter Participants Timing");
   		 System.out.println("2) Display all participant's timing");
   		 System.out.println("3) Display the Winner");
   		 System.out.println("4) Exit Program");
    	 System.out.println("************************************");
    	 //Prompt and read inputs
   		 System.out.print("Please select your choice <1-4>: ");
   		 choice=(char) System.in.read();
		 System.in.read(); // dummy read: reads CR
		 System.in.read(); // dummy read: reads LF

    switch(choice)
    {

    case '1':

    		  System.out.print("Enter Number of Participants <Max 10>: ");
              participants = input.nextInt();
    	      for (i=0; i<participants; i++)
    	      	{
             	System.out.print("Enter Participant's name: ");
            	name[i]=input.next();
            	System.out.println("Enter Timing for Swimming: ");
             	System.out.print("Enter Number of Hours: ");
             	swimHours[i]=input.nextInt();
             	do
             	{
             	System.out.print("Enter Number of Minutes: ");
             	swimMinutes[i]=input.nextInt();
             	if(swimMinutes[i]>59)
             	{
             	System.out.println("Minutes cannot be more than 59, please Reenter");
             	}
             	}while(swimMinutes[i]>59);
             	do
             	{
             	System.out.print("Enter Number of Seconds: ");
             	swimSeconds[i]=input.nextInt();
             	if(swimSeconds[i]>59)
             	{
             	System.out.println("Seconds cannot be more than 59, please reenter");
             	}
             	}while(swimSeconds[i]>59);
            	System.out.println("Enter timing for Bike: ");
             	System.out.print("Enter Number of Hours: ");
             	cycleHours[i]=input.nextInt();
             		do
             	{
             	System.out.print("Enter Number of Minutes: ");
             	cycleMinutes[i]=input.nextInt();
             	if(cycleMinutes[i]>59)
             	{
             	System.out.println("Minutes cannot be more than 59, please Reenter");
             	}
             	}while(cycleMinutes[i]>59);
             	   	do
             	{
             	System.out.print("Enter Number of Seconds: ");
             	cycleSeconds[i]=input.nextInt();
             	if(cycleSeconds[i]>59)
             	{
             	System.out.println("Seconds cannot be more than 59, please reenter");
             	}
             	}while(cycleSeconds[i]>59);
            	System.out.println("Enter timing for Running: ");
             	System.out.print("Enter Number of Hours: ");
             	runHours[i]=input.nextInt();
             		do
             	{
             	System.out.print("Enter Number of Minutes: ");
             	runMinutes[i]=input.nextInt();
             	if(runMinutes[i]>59)
             	{
             	System.out.println("Minutes cannot be more than 59, please Reenter");
             	}
             	}while(runMinutes[i]>59);
             	 	do
             	{
             	System.out.print("Enter Number of Seconds: ");
             	runSeconds[i]=input.nextInt();
             	if(runSeconds[i]>59)
             	{
             	System.out.println("Seconds cannot be more than 59, please reenter");
             	}
             	}while(runSeconds[i]>59);
    	     }while(participants>i);
    	      	break;

 	case '2': System.out.println("********Triathlon Timing(All)**************");
    		  System.out.println("*******************************************");
  		      System.out.println("Name\tSwim\tBike\tRun\tTotal\t**");
  		      for(i=0; i<participants; i++)
   			  {
    		  totalSwimSeconds[i] = (swimHours[i]*60)*60 + swimMinutes[i]*60 + swimSeconds[i];
    		  totalRunSeconds[i] = (runHours[i]*60)*60 + runMinutes[i]*60 + runSeconds[i];
    		  totalCycleSeconds[i] = (cycleHours[i]*60)*60 + cycleMinutes[i]*60 + cycleSeconds[i];
    		  totalSeconds[i] = totalCycleSeconds[i] + totalRunSeconds[i] + totalSwimSeconds[i];
    	      totalTimingHours[i] = totalSeconds[i] / 3600;
    	      remainder = totalSeconds[i] % 3600;
    	      totalTimingMinutes[i] = remainder / 60;
    	      totalTimingSeconds[i] = remainder % 60;
		      System.out.print(name[i]+"\t");
    		  System.out.print(swimHours[i]+":"+swimMinutes[i]+":"+swimSeconds[i]);
    		  System.out.print("\t"+cycleHours[i]+":"+cycleMinutes[i]+":"+cycleSeconds[i]);
    		  System.out.print("\t"+runHours[i]+":"+runMinutes[i]+":"+runSeconds[i]  );
    		  System.out.print("\t"+totalTimingHours[i]+":"+totalTimingMinutes[i]+":"+totalTimingSeconds[i]);
    		  System.out.println(" ");
   			  }while(i>name.length);
			  break;

    case '3': int topTiming;
    		  topTiming = totalSeconds[0];
  			  for(i=0;i<topTiming.length;i++)
    	      {
    	       if(totalSeconds[i]>topTiming)
    	       topTiming=totalSeconds[i];
    	       System.out.println("The winner is: "+name[i]);
    	       System.out.println("***********************************************");
    	       System.out.println("Name\tSwim\tBike\tRun\tTotal\t**");
    	       System.out.println("***********************************************");
    	       System.out.print(swimHours[i]+":"+swimMinutes[i]+":"+swimSeconds[i]);
    		   System.out.print("\t"+cycleHours[i]+":"+cycleMinutes[i]+":"+cycleSeconds[i]);
    		   System.out.print("\t"+runHours[i]+":"+runMinutes[i]+":"+runSeconds[i]  );
    		   System.out.print("\t"+totalTimingHours[i]+":"+totalTimingMinutes[i]+":"+totalTimingSeconds[i]);
    	      }


    		  break;

    case '4': System.out.println("Thank you for using this program.");
    		  break;

  	default: System.out.println("Error, please enter only <1-4>");
			 break;

   }//End Switch
  }while(choice!='4'); //end of do-while loop
 }//End Main()
}//End of class

[fred rosenberger]

topTiming is declared as an int - a primitive type. Therefore, it doesn't have a length.

[Jeff Verdegan]

int x = 3;
System.out.println(x.length); // ???

What would you expect that to mean? Primitives (byte, char, short, int, long, float, double, boolean) are not objects and do not have member variables or methods. They're just simple values. So you cannot do somePrimitive.something.

[Mark Kaichou]

Ahhhhh, I see, silly me, thanks for the prompt reply guys!

[Lalit Mehra]

toptiming isn't an array ... you can't have length for primitive datatypes ...