Byte type
A byte type is a fixed-width integer type occupying eight bits, with signedness and numeric range determined by the language.
100 Java Mistakes and How to Avoid Them
The byte type is Java's signed 8-bit integer primitive type, representing values from -128 through 127.
- How it is used
- Explains how Java byte values behave in numeric expressions, bitwise composition, shifts, and compound assignments.
- How deep it goes
- Traces sign extension and implicit narrowing through focused failure cases, then stops short of a complete byte-manipulation implementation.
- Examples
- Uses two-byte reconstruction, negative-byte conversion, unsigned right shift, masks, and Byte.toUnsignedInt.
- What you can do after
- Diagnose/debug with it by spotting sign extension, ineffective narrowing, and incomplete static-analysis coverage in byte expressions.
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Go in Action, Second Edition
A byte is an eight-bit unsigned integer value used in Go to represent raw binary data.
- How it is used
- Represents raw binary data and communicates byte-oriented intent through values such as []byte.
- How deep it goes
- Defines byte as uint8 and demonstrates []byte file handling, but defers broader string and Unicode treatment.
- Examples
- Uses os.ReadFile output, string conversion, strings.Fields, and bytes.Fields to process file contents.
- What you can do after
- Apply it via os.ReadFile and bytes APIs, converting []byte to string when the data is known to be text.
Related concepts
- integercontrasts with · An integer is a whole-number value with no fractional part, including negative numbers, zero, and positive numbers.
- primitive data typekind of · A primitive data type is a fundamental, language-provided type for representing a basic value, rather than a composite of multiple values.
- data typekind of · A data type classifies values and specifies their representation or interpretation and the operations applicable to them.
- widening conversionuses · A widening conversion converts a value to a type with a broader representable range or compatible numeric domain without requiring an explicit cast or conversion operation.
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