Logging with Log4j in Selenium Java - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a Logger instance for the class.

Selenium Java

private static final Logger logger = Logger[1](LoggingExample.class);

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AgetLogger

BcreateLogger

CnewLogger

DinitLogger

Attempts:

3 left

💡 Hint

Common Mistakes

Using a non-existent method like createLogger.

Trying to instantiate Logger with new keyword.

The Logger.getLogger(ClassName.class) method creates a Logger instance for the given class.

2fill in blank

medium

Complete the code to log an info message using Log4j.

Selenium Java

logger.[1]("Test started successfully.");

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Ainfo

Bdebug

Cwarn

Derror

Attempts:

3 left

💡 Hint

Common Mistakes

Using debug instead of info for general messages.

Using error or warn which are for problems.

The info method logs informational messages that highlight the progress of the application.

3fill in blank

hard

Fix the error in the code to log an error message with an exception.

Selenium Java

try {
    int result = 10 / 0;
} catch (ArithmeticException e) {
    logger.[1]("Division by zero error", e);
}

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Awarn

Bdebug

Cinfo

Derror

Attempts:

3 left

💡 Hint

Common Mistakes

Using warn instead of error for exceptions.

Logging exceptions with info or debug levels.

The error method is used to log error messages along with exceptions.

4fill in blank

hard

Fill both blanks to configure Log4j to log messages at debug level and above.

Selenium Java

BasicConfigurator.[1]();
Logger.getRootLogger().setLevel(Level.[2]);

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Aconfigure

Binitialize

Cstart

Dsetup

Attempts:

3 left

💡 Hint

Common Mistakes

Using initialize instead of configure for setup.

Using lowercase level names.

BasicConfigurator.configure() sets up a basic configuration for Log4j.

Level.DEBUG sets the logging level to debug and above.

5fill in blank

hard

Fill all three blanks to create a logger, log a warning, and set the logger level to WARN.

Selenium Java

Logger [1] = Logger.[2](MyTest.class);
[1].warn("This is a warning message.");
[1].setLevel(Level.[3]);

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Alogger

BgetLogger

CWARN

DcreateLogger

Attempts:

3 left

💡 Hint

Common Mistakes

Using createLogger which does not exist.

Setting level to lowercase 'warn' instead of uppercase 'WARN'.

First, create a Logger instance named logger using Logger.getLogger().

Then log a warning with warn().

Finally, set the level to Level.WARN to log warnings and above.