Added PasswordGenerator Porgram in String Package

Author: Sarabjeet13

src/main/java/com/thealgorithms/strings/PasswordGenerator.java

@@ -0,0 +1,27 @@
+
+package com.thealgorithms.strings;
+import java.util.Random;
+
+/**
+ * A simple password generator that creates random passwords
+ * containing letters, digits, and special characters.
+ */
+public class PasswordGenerator {
+
+    public static String generatePassword(int length) {
+        String chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!@#$%^&*";
+        Random random = new Random();
+        StringBuilder sb = new StringBuilder();
+
+        for (int i = 0; i < length; i++) {
+            int index = random.nextInt(chars.length());
+            sb.append(chars.charAt(index));
+        }
+        return sb.toString();
+    }
+
+    // Example usage
+    public static void main(String[] args) {
+        System.out.println("Generated Password: " + generatePassword(12));
+    }
+}