Float Java Keyword

float Java Keyword float is a Java primitive type. A float variable may store a single−precision floating point value. ExamplesRemarks

The following rules apply to this keyword's use:

Floating point literals in Java always default to double−precision. To specify a single−precision literal value, follow the number with f or F, as in 0.01f.

Since floating point data types are approximations of real numbers, you should generally never compare floating point numbers for equality.

Java floating point numbers can represent infinity and NaN (not a number). The Float wrapper class defines the constants MIN_VALUE, MAX_VALUE, NEGATIVE_INFINITY, POSITIVE_INFINITY and NaN.

float ratio = .01;
float diameter = 6.15;
float height = 1.35E03; // 1.35 * 103 or 1350.0
float height = 1e−2; // 1.0 * 10−2 or 0.01

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