how many types of data types in java?
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In Java, we have eight primitive data types: boolean, char, byte, short, int, long, float and double. Java developers included these data types to maintain the portability of java as the size of these primitive data types do not change from one operating system to another.
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Numeric Types Integers in Access come in 1, 2 and 4 byte varieties. The single byte number is named Byte (Range 0-255), the two-byte number is named Integer (-32768 to 32767) and then there is the Long Integer (-2 billion to 2 billion). Decimal numbers are so called fixed point numbers.
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Primitive data types are those that are provided by programming language. Examples are int, float, double, char and many more. User-defined data types are those that programmers can define by themselves to suit a particular application needs.
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Some common data types are as follows: integers, characters, strings, floating point numbers and arrays. More specific data types are as follows: varchar (variable character) formats, Boolean values, dates and timestamps.
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C is the answer to this question. C language only accepts two data types namely primary data types and derived data types. The primary data types will come in the form of integer, character, void, and floating point. Derived data types come in the form of an array of union, structure, and the last is the pointer.
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Though both float and double datatype are used to represent floating-point numbers in Java, a double data type is more precise than float. A double variable can provide precision up to 15 to 16 decimal points as compared to float precision of 6 to 7 decimal digits.
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['Primitive data types - includes byte , short , int , long , float , double , boolean and char.', 'Non-primitive data types - such as String, Arrays and Classes (you will learn more about these in a later chapter)']
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['String - stores text, such as "Hello". ... ', 'int - stores integers (whole numbers), without decimals, such as 123 or -123.', 'float - stores floating point numbers, with decimals, such as 19.99 or -19.99.', "char - stores single characters, such as 'a' or 'B'."]
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['number for numbers of any kind: integer or floating-point, integers are limited by ±253.', 'bigint is for integer numbers of arbitrary length.', 'string for strings. ... ', 'boolean for true / false .', 'null for unknown values – a standalone type that has a single value null .']
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What is the difference between int, char, float & double data types? Integer data type allows a variable to store numeric values. The storage size of int data type is 2 or 4 or 8 byte. ... Double data type is also same as float data type which allows up-to 10 digits after decimal.
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['Integer Literals.', 'Boolean Literals.', 'Character Literals.', 'String Literals.', 'Floating Point Literals.']
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A data type is a class of data objects with a set of operations for creating and manipulating them. Examples of elementary data types: integer, real, character, Boolean, enumeration, pointer.
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['bool: Boolean (true/false) types. Supported precisions: 8 (default) bits.', 'int: Signed integer types. ... ', 'uint: Unsigned integer types. ... ', 'float: Floating point types. ... ', 'complex: Complex number types. ... ', 'string: Raw string types. ... ', 'time: Data/time types. ... ', 'enum: Enumerated types.']
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When a value-type instance is created, a single space in memory is allocated to store the value. Primitive types such as int, float, bool and char are also value types, and work in the same way.
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Numeric data types are numbers stored in database columns. These data types are typically grouped by: Exact numeric types, values where the precision and scale need to be preserved. The exact numeric types are INTEGER , BIGINT , DECIMAL , NUMERIC , NUMBER , and MONEY .
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['Numeric. A numeric value is any representation of data which has a numeric value. ... ', 'Boolean. Data with one of two built-in values True or False . ... ', 'Sequence Type. ... ', 'Dictionary. ... ', 'Mutable and Immutable Objects.']
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['Integer.', 'Floating Point.', 'Character.', 'String.', 'Boolean.']