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Java Best Practices: Log Exceptions Instead of Printing Stack Trace
Printing stack traces in Java makes debugging difficult and clutters logs. Learn why logging exceptions using Logger is a best practice, and see real-world examples of structured error handling.
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Now, let’s dive into the topic! 👇
🚀 Why You Should Log Exceptions Instead of Printing Stack Trace
When an exception occurs, many developers use e.printStackTrace() for debugging. However, this approach is not recommended because:
❌ It clutters console output — Difficult to track in production logs
❌ Not structured or searchable — Hard to analyze in large applications
❌ Cannot be stored or sent to monitoring tools
💡 Solution? Use a proper logging framework (java.util.logging, SLF4J, Log4j) instead of printStackTrace().
📌 In this article, you’ll learn:
✅ Why printStackTrace() is bad for production code
✅ How to log exceptions properly using Logger
✅ Complete examples with best practices
🔍 The Problem: Using printStackTrace() (Bad Practice)
✔ Example: Using printStackTrace() (Incorrect Way)
public class StackTraceExample {
public static void main(String[] args) {
try {
int result = divide(10, 0);
} catch (ArithmeticException e) {
e.printStackTrace(); // ❌ BAD: Prints raw stack trace
}
}
public static int divide(int a, int b) {
return a / b; // Causes ArithmeticException
}
}
