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A bit array (also known as bitmask, [1] bit map, bit set, bit string, or bit vector) is an array data structure that compactly stores bits. It can be used to implement a simple set data structure . A bit array is effective at exploiting bit-level parallelism in hardware to perform operations quickly.
In computer science, type conversion, [1] [2] type casting, [1] [3] type coercion, [3] and type juggling [4] [5] are different ways of changing an expression from one data type to another. An example would be the conversion of an integer value into a floating point value or its textual representation as a string , and vice versa.
store a char into an array checkcast c0 1100 0000 2: indexbyte1, indexbyte2 objectref → objectref checks whether an objectref is of a certain type, the class reference of which is in the constant pool at index (indexbyte1 << 8 | indexbyte2) d2f 90 1001 0000 value → result convert a double to a float: d2i 8e 1000 1110 value → result
A bit field is distinguished from a bit array in that the latter is used to store a large set of bits indexed by integers and is often wider than any integral type supported by the language. [citation needed] Bit fields, on the other hand, typically fit within a machine word, [3] and the denotation of bits is independent of their numerical ...
In Java, the growable bit-array data structure BitSet has a BitSet.cardinality() method that counts the number of bits that are set. In addition, there are Integer.bitCount(int) and Long.bitCount(long) functions to count bits in primitive 32-bit and 64-bit integers, respectively.
Bit indexing correlates to the positional notation of the value in base 2. For this reason, bit index is not affected by how the value is stored on the device, such as the value's byte order . Rather, it is a property of the numeric value in binary itself.
In computer programming, a bitwise operation operates on a bit string, a bit array or a binary numeral (considered as a bit string) at the level of its individual bits.It is a fast and simple action, basic to the higher-level arithmetic operations and directly supported by the processor.
42,1 A to Z,1,2,3: edn: nil: true: false: 685230-685230: 6.8523015e+5 "A to Z", "A \"up to\" Z" [true nil -42.1e7 "A to Z"] {:kw 1, "42" true, "A to Z" [1 2 3]} Format Null Boolean true Boolean false Integer Floating-point String Array Associative array/Object; Ion: null null.null null.bool null.int null.float null.decimal null.timestamp null ...