How To Make A File Splitter In Java

Question

Hey everyone...is it possible to make a file splitter program in java swing?what API do you think should be used in creating that application and how does it work? Assume that the application will be ran on windows desktop. Thanks to all...

Answer 1

* FileSplitter.java
import java.util.*;
public class FileSplitter {
    ArrayList list = new ArrayList();{
        list.add("test 01");
        list.add("test 02");
        list.add("test 03");
        list.add("test 04");
        list.add("test 05");
        list.add("test 06");
        list.add("test 07");
        list.add("test 08");
        list.add("test 09");
        list.add("test 10");
        list.add("test 11");
        list.add("test 12");
        list.add("test 13");
        list.add("test 14");
        list.add("test 15");
        list.add("test 16");
        list.add("test 17");
        list.add("test 18");
        list.add("test 19");
        list.add("test 20");
        list.add("test 21");
        list.add("test 22");
        list.add("test 23");
        list.add("test 24");
        list.add("test 25");
        list.add("test 26");
        list.add("test 27");
        list.add("test 28");
        list.add("test 29");
        list.add("test 30");
    public FileSplitter() {
        testAlgorithm();
    private void testAlgorithm(){
        final int randNo = list.size()/2;//=number of input records / 2
        Random r = new Random();         //creates a new random number generator
        List newlist = new ArrayList();  //constructs a new empty list
        while(list.size()> randNo) {//returns true if the number of elements in the list is greater than randNo
            //(half of the input records are splitted)
            int index = r.nextInt(list.size());//returns a random between 0 (inclusive)
            //and the number of elements in the list (exclusive)
            newlist.add(list.get(index));//returns the element at the specified position in the list
            //and appends it to the end of newlist
            list.remove(index);//removes the element at the specified position in the list
            //and shifts any subsequent elements to the left
        System.out.println("newlist: "+newlist);//one part of the file
        System.out.println("list: "+list);//the other part of throws file
    public static void main(String[] args) {
        new FileSplitter();
}