Java logging framework - with printf() support

Question

In c, printf() is really easy to use, and in Java System.out.printf() is also amazing, but in log4j, seems only can use "First name: "+ firstName +", Age: " + age, which is very uncomfortable.

The questions are:

• What is the difficulty that prevents log4j from implement such a feature?
• What logging framework support such feature, can u give a short example that include the maven dependencies & Java code.

Answer 1

You can use org.slf4j.Logger which provides a way to format log in such manner.

For example,

LOGGER.info("Roll number of Student {} is {}.", studentName, rollNumber);