Floating Point Data Types In Java

Datatypes > Primtive Dataypes >
Siva Nookala - 16 Feb 2019

The floating-point data types are used to store decimal numbers like 3.45, -1267.89, 0.33424324, 0.00011, 4.0, 189.0 etc. Java supports two floating point types - float and double

The two floating point types in the order of size are:

Type	Size	Range Inclusive	Samples
`float`	32-bits or 4 bytes	1.40e-45 to 3.40e+38	percentage of marks, batsmen average, run rate
`double`	64-bits or 8 bytes	4.9e-324 to 1.8e+308	high precision calculations, square roots, PI

Depending upon the requirement we should choose the appropriate data type

See Floating Point Literals In Java to get the understanding of numbers like '4.9e-324', '3.40e+38' etc.,

3-min video about floating point data types

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