intersection of arrays

Hi,

How do I obtain the intersection of 2 arrays in Java ??

I have a String array a[] and an ArrayList ai()... Need to obtain the values in a[] which are not present in ai()..

hv browsed and browsed, tried creating my own scripts but to no avail..

afaik there r no builtin function in jdk1.3 which does this..

any suggestions???

tia,
gaucho

Hi.

I think this will solve the problem.

public class test33
{
public static void main( String args[] )
{
int[] array1 = { 2, 4, 6, 8, 10 };
int[] array2 = { 2, 4, 5, 7, 9 };

for( int i = 0; i < array1.length; i++ )
{
for( int j = 0; j < array2.length; j++ )
{
if( array1[i] == array2[j] )
{
System.out.println("Intersection at: " + array1[i] );
}
}
}
}
}


// Output

C:\>java test33
Intersection at: 2
Intersection at: 4

C:\>


Hope this helps,

-Caitlin.

hi,

thnx for the reply.. had it solved a few days bak...

cheers,
sands