little scala snippet

def showRow(arra: Array[int], molt: int, mod: int ,unitari : boolean ):Array[int] = {
    val a2 = arra.map( s => ( s * molt ) % mod )

    if ( unitari )
        println ( a2.map( s => if ( s == 1 s == ( mod -1 ) ) 1 else 0 ).toString )
    else
        println( a2.toString )
    a2
}

def shoMatr( mod: int , unitari : boolean ) {

    println( if ( unitari ) "elementi unitari" else "tabella moltiplicativa" )

    val array = new Array[int]( mod - 1 ).indices.map( s => s + 1 )

    array.foreach( p => showRow( array , ( array indexOf p ) + 1 , mod , unitari ) )

}