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$ curl repovive.com/roadmaps/java/variables-data-types/the-long-short-and-byte-types

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$ curl repovive.com/roadmaps/java/variables-data-types/the-long-short-and-byte-types

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The long, short, and byte Types - Variables & Data Types | Java | Repovive

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The long, short, and byte Types

Core concept

Java has $3$ more integer types beyond int:

$1.$ byte uses $8$ bits. Range: $-128$ to $127$ . Good for raw binary data or saving memory in large arrays.

$2.$ short uses $16$ bits. Range: roughly $-32{,}000$ to $32{,}000$ . Rarely used in practice.

$3.$ long uses $64$ bits. Range: up to about $9.2$ quintillion. Use it when int's $2$ billion limit isn't enough.

byte small = 100;
short medium = 30000;
long big = 9000000000L;

Notice the L suffix on the long value. Without it, Java treats the number as int and throws an error if it's too large. In day-to-day coding, you'll mostly use int and reach for long only when values exceed $2$ billion.

HannahHi! I'm Hannah. Let me know if you need help understanding anything!