জাভা এক্সেপশন

public class Main {

  static String user(String name) throws Exception {
    if (name.equals("")) {
      throw new Exception("ডেটা পাওয়া যায়নি");
    }

    return name;
  }

  static void page() {
    try {
      System.out.println(user(""));
    } catch (Exception error) {
      System.out.println(error.getMessage());
    }
  }

  public static void main(String[] args) {
    page();
  }
}

public class Main {

  static Exception user() {
    return new Exception("ডেটা পাওয়া যায়নি");
  }

  static void page() {
    try {
      throw user();
    } catch (Exception error) {
      System.out.println(error.getMessage());
    }
  }

  public static void main(String[] args) {
    page();
  }
}

public class Main {

  static String user(String name) throws Exception {
    if (name.equals("")) {
      throw new Exception("ডেটা পাওয়া যায়নি");
    }

    return name;
  }

  static void page() {
    try {
      System.out.println(user(""));
    } catch (Exception error) {
      System.out.println(error.getMessage());
    }
  }

  public static void main(String[] args) {
    page();
  }
}

public class Main {

  static String user(String name) throws Exception {
    if (name.equals("")) {
      throw new Exception("ডেটা পাওয়া যায়নি");
    }

    return name;
  }

  static void page() {
    try {
      System.out.println(user(""));
    } catch (Exception error) {
      System.out.println(error.getMessage());
    }
  }

  public static void main(String[] args) {
    page();
  }
}

public class Main {

  static String user(String name) throws Exception {
    if (name.equals("")) {
      throw new Exception("ডেটা পাওয়া যায়নি");
    }

    return name;
  }

  static void page() {
    try {
      System.out.println(user(""));
    } catch (Exception error) {
      System.out.println(error.getMessage());
    }
  }

  public static void main(String[] args) {
    page();
  }
}

public class Main {

  static Exception user() {
    Exception cause = new Exception("ডেটা পাওয়া যায়নি");

    return new Exception("অপারেশন ব্যর্থ হয়েছে", cause);
  }

  static void page() {
    try {
      throw user();
    } catch (Exception error) {
      System.out.println(error.getCause().getMessage());
    }
  }

  public static void main(String[] args) {
    page();
  }
}

public class Main {

  static void user() throws Exception {
    throw new Exception("ডেটা পাওয়া যায়নি");
  }

  static void page() {
    try {
      user();
    } catch (Exception error) {
      StackTraceElement[] trace = error.getStackTrace();

      System.out.println(trace[0]);
    }
  }

  public static void main(String[] args) {
    page();
  }
}

public class Main {

  static void user() throws Exception {
    throw new Exception("ডেটা পাওয়া যায়নি");
  }

  static void page() {
    try {
      user();
    } catch (Exception error) {
      System.out.println(error.toString());
    }
  }

  public static void main(String[] args) {
    page();
  }
}