DN03

gesla.txt

@@ -0,0 +1,5 @@
+4
+abcdefghijklmnoprstuvz
+XYQW
+0123456789
+_-#@

src/DN03.java

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+import java.io.File;
+import java.io.FileNotFoundException;
+import java.util.Random;
+import java.util.Scanner;
+
+public class DN03 {
+    public static void main(String[] args) {
+        File file = new File(args[0]);
+        Scanner scanner;
+        try {
+            scanner = new Scanner(file);
+        } catch (FileNotFoundException e) {
+            System.err.println("Datoteka ne obstaja");
+            return;
+        }
+
+        int len = Integer.parseInt(scanner.nextLine());
+        String[] besede = new String[len];
+
+        for (int i = 0; i < len; i++) {
+            besede[i] = scanner.nextLine();
+        }
+        scanner.close();
+
+        int n = Integer.parseInt(args[1]);
+        Random random = new Random(Integer.parseInt(args[2]));
+
+        StringBuilder geslo = new StringBuilder();
+        for (int i = 0; i < n; i++) {
+            String beseda = besede[random.nextInt(len)];
+            geslo.append(beseda.charAt(random.nextInt(beseda.length())));
+        }
+
+        System.out.println(geslo);
+    }
+}