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import java.io.File;import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Scanner;
public class Programming4 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
Scanner s = new Scanner(System.in);
System.out.print("Enter data file name: ");
String fileName; // = "SortDatafile.txt"; //s.nextLine();
fileName = s.nextLine();
ArrayList< int [] > arrayList = new ArrayList<>();
try {
Scanner file = new Scanner(new File(fileName));
String line;
while (file.hasNext()) {
line = file.nextLine();
arrayList.add(string2IntArray(line));
}
} catch (FileNotFoundException ex) {
System.out.println(ex.getMessage());
}...