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Index › Programming Questions & Help › Programs › find the index of a specific number in an array
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find the index of a specific number in an array (Read 1211 times)
smuuuf
find the index of a specific number in an array
Mar 11th, 2009, 12:06pm  
Hi

my problem is this:
i have two arrays. i want to use max() function to find the highest number in the first array, and then find out the index of this number within the array. so if array[15]=216 or something, how can i find out that 216 is on the 15th place?

or is there a better solution than having two seperate arrays, where each item corresponds with the item in the other array on the same place?
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JohnG
Re: find the index of a specific number in an arra
Reply #1 - Mar 11th, 2009, 1:28pm  
You can write your own version of the max function that'll give you the number and position:

Code:

int pos=-1;
int max=Integer.MIN_VALUE; //lowest possible value of an int.
for(int i=0;i<myArray.length;i++)
{
  if(myArray[i]>max)
  {
    pos=i;
    max=myArray[i];
  }
}
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smuuuf
Re: find the index of a specific number in an arra
Reply #2 - Mar 11th, 2009, 3:42pm  
Thank you very much for that hint! that worked perfectly!
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