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- 1Data encoded in a program is stored in memory and can be of various types, such as characters, numbers, or alphanumeric values. For example, a person's basic information like name, age, and address can be stored as characters, numeric value, alphanumeric valuedata types in java
- 2Data types define the operations that can be performed on data and how it's stored. In Java, data types are categorized into two main typesprimitive and abstract
- 3are built-in to the Java language and are not objects. They have no methods and are directly supported by the Java compilerprimitive data types
- 4the eight primitive data types defined in Java:byte, short, int, long, float, double, char, boolean
- 5Java defines Byte, Short, Int, and Long as ______ data types. These are all signed, meaning they can represent both positive and negative values. While Java doesn't support unsigned ______ , it uses a special "unsigned right shift" operation to manage the sign of an ______ value.integer type
- 6The smallest integer type representing a number between -128 and 127. Declared using the ______ keywordbyte
- 7epresents integers between -32768 and 32767. Declared using the ______ keywordshort
- 8This data type can handle larger numbers and is considered the best choice when an integer is needed because when Byte and Short values are used in an expression, they are promoted to Int automaticallyint
- 9This data type holds a number higher than a regular integer. The ______ integer is a variable that can hold a very large number. A capital letter 'L' is placed right after the value.long
- 10______ are also called "real numbers" and are used when evaluating an expression that needs fractional accuracy, such as the computation of square root or a transcendental (sine and cosine). Float and Double are both ______ types.floating point
- 11real number qualifies as a single precision floating point when it only needs a limited number of bits. Single precision takes half the space of a double precision and is much faster on some processors. ______ are used to represent dollars and cents, so a small letter 'f' is placed to the right of the value when initializing the variablefloat
- 12______ precision can be faster than single precision on modern processors that have been optimized for high-speed mathematical calculations. It can handle larger numbers than Float.double
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- Flashcards on Untitled, created by John Earl Rance on 09/10/2024.
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- John Earl Rance
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