Handling Exceptions with try, catch, and finally Blocks

Intermediate13 min read•Updated: 2026-10-22

🛡️ Handling Exceptions with try, catch, and finally

Introduction

The try-catch-finally construct intercepts runtime exceptions, executes fallback recovery routines, and guarantees cleanup execution.

💻 Full Implementation

1public class TryCatchFinallyDemo {
  public static void main(String[] args) {
      try {
          int a = 10;
          int b = 0;
          System.out.println("Performing division...");
          int result = a / b; // Throws ArithmeticException!
          System.out.println("Result: " + result); // Skipped!
      } catch (ArithmeticException ex) {
          System.err.println("[CAUGHT ERROR]: Division by zero is undefined! " + ex.getMessage());
      } catch (Exception ex) {
          System.err.println("[GENERIC ERROR]: " + ex.getMessage());
      } finally {
          // FINALLY block ALWAYS executes whether an exception occurred or not!
          System.out.println("[FINALLY]: Execution cleanup finished.");
      }
17 
      System.out.println("Application recovered and continuing smoothly.");
  }
20}

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Automatic Resource Management: try-with-resources and AutoCloseable

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Checked vs Unchecked Exceptions	Automatic Resource Management: try-with-resources and AutoCloseable

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Automatic Resource Management: try-with-resources and AutoCloseable

Handling Exceptions with try, catch, and finally Blocks

Intermediate13 min read•Updated: 2026-10-22

Study Materials

🛡️ Handling Exceptions with try, catch, and finally

Introduction

The try-catch-finally construct intercepts runtime exceptions, executes fallback recovery routines, and guarantees cleanup execution.

💻 Full Implementation

1public class TryCatchFinallyDemo {
  public static void main(String[] args) {
      try {
          int a = 10;
          int b = 0;
          System.out.println("Performing division...");
          int result = a / b; // Throws ArithmeticException!
          System.out.println("Result: " + result); // Skipped!
      } catch (ArithmeticException ex) {
          System.err.println("[CAUGHT ERROR]: Division by zero is undefined! " + ex.getMessage());
      } catch (Exception ex) {
          System.err.println("[GENERIC ERROR]: " + ex.getMessage());
      } finally {
          // FINALLY block ALWAYS executes whether an exception occurred or not!
          System.out.println("[FINALLY]: Execution cleanup finished.");
      }
17 
      System.out.println("Application recovered and continuing smoothly.");
  }
20}

Next Lesson

Automatic Resource Management: try-with-resources and AutoCloseable

Continue learning with hands-on practice, examples, and exercises in the upcoming topic.

Related Lessons

Previous Lesson	Next Lesson
Checked vs Unchecked Exceptions	Automatic Resource Management: try-with-resources and AutoCloseable

Practice Quiz

Test your understanding of this lesson with 1 questions. Each question has one correct answer.

Previous Next