Number

A number is a value of a numerical type.

Related concepts:  ValueType

Closest Wikipedia entry:  Number — A number is a mathematical object used to count, measure, and label. The most basic examples are the natural numbers 1, 2, 3, 4, and so forth. Numbers can be represented in language with number words.

Misconceptions about Number

15 documented Misconceptions

CharNotNumeric — Java

Char is not a numeric type

IntegerDivisionToRational — Java

Dividing two integers can produce a rational number

LargeIntegerLong — Java

Large integer numbers have type long

NoCastIfSameSize — Java

If a variable is at least as big (bit-width) as a value, then no cast is needed to a assign the value to the variable

NoFloatLiterals — Java

There are no float literals

NoLongLiterals — Java

There are no long literals

NoSequenceRepetition — Python

There is no operator that repeats sequences

NumericToBooleanCoercion — Java

Numeric types can be coerced to boolean

PlusConcatenatesNumbers — Python

The plus operator can concatenate strings and numbers

RationalLiterals — Java

Rational fractions are literals

ReferenceToIntegerConversion — Java

One can cast between references and ints

StringRepetitionOperator — Java

The multiplication operator can repeat a String a number of times

StringRepetitionOperator — JavaScript

One can repeat a String by multiplying it with a number

TargetTyping — Java

The type of a numerical expression depends on the type expected by the surrounding context

ZeroDigitsCompress — Java

In integer numbers, decimal digits with value `0` take less storage than decimal digits with other values