I come across the following syntax to represent an integer and it looks new to me. What does it signify
props.put(ProducerConfig.BATCH_SIZE_CONFIG, 16_384 * 4);
How does 16384 is different from 16_384 ?
Kafka , Java - what does this "_" represent in integer literal
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2 Answers
It's the same. You can use "_" on an integer to make it be more readable.
16_384 is more readable than 16384
16_384_000 is more readable than 16384000
In Java SE 7 and later, any number of underscore characters (_) can appear anywhere between digits in a numerical literal. This feature enables you, for example, to separate groups of digits in numeric literals, which can improve the readability of your code.
long creditCardNumber = 1234_5678_9012_3456L; long socialSecurityNumber = 999_99_9999L;
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