Thanks for Trishul, Pothireddy, Vinicius and Java Guy
for sparing you valuable time to look intommy problem.
I understtod the problem.
I'll modify my program this eveving.
Thanks agin.
Sri
____________
From: Trishul Mukherjee <trishul.mukherjee@
To: Java_Official@
Sent: Tue, 8 December, 2009 5:36:22 PM
Subject: Re: [Java] Exception in thread "main" java.lang.ArrayInde
Hi Rama,
The ArrayIndexOutOfBoun dsException is a clear indication that you are trying to access an index beyond the array size. In your case it'll be clear if you print out the value of i and j just prior to accessing them on line 44. Remember that array indices starts from 0.
In your program, as soon as the value of j hits 9, the expression "temperature[ i][j+1]" tries to access the 11th element - which does not exist and hence throws an exception.
The solution is to change the line
for (int j=0; j<10; j++)
to
for (int j=0; j<9; j++)
Hope this helps.
And happy learning!
Regards,
Trishul
P.S. Contrary to many experts, I suggest you to use Eclipse and use the Debugger so that you can visually see whats happening to your program.
____________ _________ _________ __
From: Sri Rama Krishnamurthi <srmurthi1@yahoo. com>
To: Java_Official@ yahoogroups. com
Sent: Sat, December 5, 2009 9:40:44 PM
Subject: [Java] Exception in thread "main" java.lang.ArrayInde xOutOfBoundsExce ption: 10 - ls Pls help me to solve
Hi,
I've started learning Java and creating small programs and compiling on my own using EditPlus Editor and Command Prompt.
No doubt, my prorgram will tell you I'm a beginner.
javac Temperature. java was successful.
When I fire java Temperature I got the follwoing error.
Exception in thread "main" java.lang.ArrayInde xOutOfBoundsExce ption: 10
at Temperature. main(Temperature .java:44)
I can see my "if clause" compares the values in the first row from the Print staements. After that it's throwing error. Somebody please help me to find out and fix this error.
Thanks in advance
Sri
Program Starts
class Temperature
//To get the RowNum, ColumnNum of the highest and lowest teperature from the array temperature
{
public static void main(String[ ] args)
{
double temp;
int maxDay = 0, maxCityCode = 0, minDay, minCityCode;
double temperature [ ][ ] = {
{ 25.00, 24.50, 23.00, 23.50, 24.00, 24.50, 25.00, 25.50, 26.00, 26.50 },
{ 23.00, 24.00, 25.00, 26.00, 27.00, 28.00, 29.00, 30.00, 31.00, 32.00 },
{ 21.00, 23.00, 24.00, 23.50, 25.00, 25.00, 23.00, 26.00, 27.00, 30.00 },
{ 24.00, 23.67, 25.00, 24.33, 26.33, 26.33, 23.67, 27.67, 29.00, 33.00 },
{ 23.50, 23.92, 25.50, 24.33, 26.83, 26.58, 22.67, 27.92, 29.50, 34.75 },
{ 23.90, 24.17, 26.00, 24.33, 27.33, 26.83, 21.67, 28.17, 30.00, 36.50 },
{ 24.30, 24.42, 26.50, 24.33, 27.83, 27.08, 20.67, 28.42, 30.50, 38.25 },
{ 24.70, 24.67, 27.00, 24.33, 28.33, 27.33, 19.67, 28.67, 31.00, 40.00 },
{ 25.10, 24.92, 27.50, 24.33, 28.83, 27.58, 18.67, 28.92, 31.50, 41.75 },
{ 25.50, 25.17, 28.00, 24.33, 29.33, 27.83, 17.67, 29.17, 32.00, 43.50 },
{ 25.90, 25.42, 28.50, 24.33, 29.83, 28.08, 16.67, 29.42, 32.50, 45.25 },
{ 26.30, 25.67, 29.00, 24.33, 30.33, 28.33, 15.67, 29.67, 33.00, 47.00 },
{ 26.70, 25.92, 29.50, 24.33, 30.83, 28.58, 14.67, 29.92, 33.50, 48.75 },
{ 27.10, 26.17, 30.00, 24.33, 31.33, 28.83, 13.67, 30.17, 34.00, 50.50 },
{ 27.50, 26.42, 30.50, 24.33, 31.83, 29.08, 12.67, 30.42, 34.50, 52.25 },
{ 27.90, 26.67, 31.00, 100.00, 32.33, 29.33, 11.67, 30.67, 35.00, 54.00 },
{ 28.30, 26.92, 31.50, 24.33, 32.83, 29.58, 10.67, 30.92, 35.50, 55.75 },
{ 28.70, 27.17, 32.00, 24.33, 33.33, 29.83, 9.67, 31.17, 36.00, 57.50 },
{ 29.10, 27.42, 32.50, 24.33, 33.83, 30.08, 8.67, 31.42, 36.50, 59.25 },
{ 29.50, 27.67, 33.00, 24.33, 34.33, 30.33, 7.67, 31.67, 37.00, 61.00 },
{ 29.90, 27.92, 33.50, 24.33, 34.83, 30.58, 6.67, 31.92, 37.50, 62.75 },
{ 30.30, 28.17, 34.00, 24.33, 35.33, 30.83, 5.67, 32.17, 38.00, 64.50 },
{ 30.70, 28.42, 34.50, 24.33, 35.83, 31.08, 4.67, 32.42, 38.50, 66.25 },
{ 31.10, 28.67, 35.00, 24.33, 36.33, 31.33, 3.67, 32.67, 39.00, 68.00 },
{ 31.50, 28.92, 35.50, 24.33, 36.83, 31.58, 2.67, 32.92, 39.50, 69.75 },
{ 31.90, 29.17, 36.00, 24.33, 37.33, 31.83, 1.67, 33.17, 40.00, 71.50 },
{ 32.30, 29.42, 36.50, 24.33, 37.83, 32.08, 0.67, 33.42, 40.50, 73.25 },
{ 32.70, 29.67, 37.00, 24.33, 38.33, 32.33, -0.33, 33.67, 41.00, 75.00 },
{ 33.10, 29.92, 26.73, 24.33, 38.83, 32.58, -1.33, 33.92, 41.50, 76.75 },
{ 33.50, 30.17, 26.83, 24.33, 39.33, 32.83, -2.33, 34.17, 42.00, 78.50 },
{ 33.90, 30.42, 26.93, 24.33, 39.83, 33.08, -3.33, 34.42, 42.50, 80.25 }
};
for (int i=0; i<31; i++)
{
for (int j=0; j<10; j++)
{
System.out.println( "temp =" + temperature[ i][j] + " , " + temperature[ i][j+1]);
if (temperature[ i][j] < temperature[ i][j+1])
{
temp = temperature[ i][j];
temperature[ i][j] = temperature[ i][j+1];
temperature[ i][j+1] = temp;
maxDay = i+1;
maxCityCode = j+1;
}
else
{
minDay = 1;
minCityCode = j+2;
}
System.out.println( "Next Value");
}
}
System.out.println( "Maximum Temperature on Day" + maxDay);
System.out.println( "Maximum Temperature on City" + maxCityCode) ;
}
}
Program Ends
Output in command Prompt
F:\UDX\Sample_ Java_Programs> javac Temperature. java
F:\UDX\Sample_ Java_Programs> java Temperature
temp =25.0 , 24.5
Next Value
temp =24.5 , 23.0
Next Value
temp =23.0 , 23.5
Next Value
temp =23.0 , 24.0
Next Value
temp =23.0 , 24.5
Next Value
temp =23.0 , 25.0
Next Value
temp =23.0 , 25.5
Next Value
temp =23.0 , 26.0
Next Value
temp =23.0 , 26.5
Next Value
Exception in thread "main" java.lang.ArrayInde xOutOfBoundsExce ption: 10
at Temperature. main(Temperature .java:44)
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