java.lang.NullPointerException

Hi All,

I have this error : java.lang.NullPointerException when i run a code
with this lines . Any suggestion ?

for ( int v=0; v<=73; v++ )
{
find1 = array[v].lastIndexOf(valueToFind);
if ( find1 != -1 )
{
System.out.println("Array is =" +array[v]);
}
}

thanks