Passing array as arguments

Question

im very new to java, dont know much about it.can any one please tell me how ot pass array or array list as a argument to a class

Answer 1

this is my main class where it calls a readfile class to read contents of file
import java.awt.List;
import java.io.IOException;
public class Sample {
public static List alist = new List();
public static void main(final String[] args) throws IOException {
new Readfile().readFromFile("c:/sam.txt");
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;
this is readfile class which reads from file having comma as a delimiter and store it in an array list.
class Readfile {
* Declaration of arraylist.
static List alist = new ArrayList();
public void readFromFile(final String filename) throws IOException {
BufferedReader bufferedReader = null;
// Construct the BufferedReader object
bufferedReader = new BufferedReader(new FileReader(filename));
String line;
while ((line = bufferedReader.readLine()) != null) {
// storing in to arraylist
StringTokenizer st1 = new StringTokenizer(line, ",");
while (st1.hasMoreTokens()) {
alist.add(st1.nextToken());
//here just im printing the elements from arraylist.
for (int j = 0; j < alist.size(); j++) {
System.out.println(alist.get(j));
if (bufferedReader != null) {
bufferedReader.close();
//converting arraylist to array;
String[] strArray = new String[50];
alist.toArray(strArray);
//passing array as argument
Area area1 = new Area(strArray);
area1.calc();
area1.print();
Here is the class for area
class Area {
String[] alist1 = new String[50];
private int[] array = new int[50];
private int[] array1 = new int[50];
public Area(final String[] alist) {
alist1 = alist;
void calc() {
* for (int i = 0; i < 2 - (alist1.length); i = i + 2) { array1[i] =
     (Integer.valueOf(alist1).intValue() * Integer .valueOf(alist1[i ]).intValue());
* To print the Area.
void print() {
System.out.println("Area of Rectangles ");
for (int i = 0; i < array1.length; i++) {
System.out.println(array1[i]);
im not sure how standard my code is .please guide me