View difference between Paste ID: 19TiSVPb and 7nsEWav4

 package com.company;
 
 import com.company.ArrayUtils;
 import com.company.SwingUtils;
 import java.util.Locale;
 import java.util.Scanner;
 
 
 public class Program {
 
     public static void main(String[] args) throws Exception {
         //SwingUtils.setLookAndFeelByName("Windows");
         if (args.length == 0) {
             Locale.setDefault(Locale.ROOT);
             //UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
             SwingUtils.setDefaultFont("Times New Roman", 16);
 
             /* Create and display the form */
             java.awt.EventQueue.invokeLater(() -> new FrameMain().setVisible(true));
         }
         else  {int[][] matrix = ArrayUtils.readIntArray2FromFile(args[0]);
         String[][] arr2;
         arr2 = Task.solution(matrix);
         String fileName;
         if (args.length==1) {
-                String fileName;
+
                 Scanner scn = new Scanner(System.in);
                 fileName = scn.nextLine();
             if (!fileName.toLowerCase().endsWith(".txt")) {
                 fileName += ".txt";
             }
                 ArrayUtils.writeArrayToFile(fileName, arr2);
             }
-        if (args.length == 2) ArrayUtils.writeArrayToFile(args[1], (arr2));
+        if (args.length == 2) {
             if (!args[1].endsWith(".txt")) {
                 args[1] += ".txt";
             }
             ArrayUtils.writeArrayToFile(args[1], (arr2));}
         else System.err.print(-1);
         }
     }
 }