← GlossaryWas this page helpful?
What does "long" mean in programming?
long is one of the most common terms in software development. This guide explains what it means, how it is used in practice, and why it matters, with real examples from the developer world.
Definition
A 64-bit integer type that holds larger values than a standard int. In Java and C# it ranges from about -9.2 to 9.2 quintillion. Use it for IDs, timestamps, or any count that could exceed 2 billion.
Example
"long timestamp = 1_716_000_000_000L; // milliseconds since epoch"
Can you put this sentence in the right order?
Tap the words to place them here
Keep building your technical English
You just looked up what this word means. Lingua-e turns vocabulary like this into full practice: fill-in-the-blanks, listening, and real developer conversations.
Practice this for free