Introduction
The java.lang.Float class wraps a value of primitive type float in an object. An object of type Float contains a single field whose type is float.Class declaration
Following is the declaration for java.lang.Float class:public final class Float extends Number implements Comparable<Float>
Field
Following are the fields for java.lang.Float class:- static int MAX_EXPONENT -- This is Maximum exponent a finite float variable may have.
- static float MAX_VALUE -- This is a constant holding the largest positive finite value of type float, (2-2-23)·2127.
- static int MIN_EXPONENT -- This is minimum exponent a normalized float variable may have.
- static float MIN_NORMAL -- This is a constant holding the smallest positive normal value of type float, 2-126.
- static float MIN_VALUE -- This is a constant holding the smallest positive nonzero value of type float, 2-149.
- static float NaN -- This is a constant holding a Not-a-Number (NaN) value of type float.
- static float NEGATIVE_INFINITY -- This is a constant holding the negative infinity of type float.
- static float POSITIVE_INFINITY -- This is a constant holding the positive infinity of type float.
- static int SIZE -- This is the number of bits used to represent a float value.
- static Class<Float> TYPE -- This is the Class instance representing the primitive type float.
Class constructors
S.N. | Constructor & Description |
---|---|
1 |
Float(double value) This constructs a newly allocated Float object that represents the argument converted to type float. |
2 |
Float(float value) This constructs a newly allocated Float object that represents the primitive float argument. |
3 |
Float(String s) This constructs a newly allocated Float object that represents the floating-point value of type float represented by the string. |
Class methods
S.N. | Method & Description |
---|---|
1 |
byte byteValue() This method returns the value of this Float as a byte (by casting to a byte). |
2 |
static int compare(float f1, float f2) This method compares the two specified float values. |
3 |
int compareTo(Float anotherFloat) This method compares two Float objects numerically. |
4 |
double doubleValue() This method returns the double value of this Float object. |
5 |
boolean equals(Object obj) This method compares this object against the specified object. |
6 |
static int floatToIntBits(float value) This method returns a representation of the specified floating-point value according to the IEEE 754 floating-point "single format" bit layout. |
7 |
static int floatToRawIntBits(float value) This method returns a representation of the specified floating-point value according to the IEEE 754 floating-point "single format" bit layout, preserving Not-a-Number (NaN) values. |
8 |
float floatValue() This method returns the float value of this Float object. |
9 |
int hashCode() This method returns a hash code for this Float object. |
10 |
static float intBitsToFloat(int bits) This method returns the float value corresponding to a given bit representation. |
11 |
int intValue() This method returns the value of this Float as an int (by casting to type int). |
12 |
boolean isInfinite() This method returns true if this Float value is infinitely large in magnitude, false otherwise. |
13 |
static boolean isInfinite(float v) This method returns true if the specified number is infinitely large in magnitude, false otherwise. |
14 |
boolean isNaN() This method returns true if this Float value is a Not-a-Number (NaN), false otherwise. |
15 |
static boolean isNaN(float v) This method returns true if the specified number is a Not-a-Number (NaN) value, false otherwise. |
16 |
long longValue() This method returns value of this Float as a long (by casting to type long). |
17 |
static float parseFloat(String s) This method returns a new float initialized to the value represented by the specified String, as performed by the valueOf method of class Float. |
18 |
short shortValue() This method returns the value of this Float as a short (by casting to a short). |
19 |
static String toHexString(float f) This method returns a hexadecimal string representation of the float argument. |
20 |
String toString() This method returns a string representation of this Float object. |
21 |
static String toString(float f) This method returns a string representation of the float argument |
22 |
static Float valueOf(float f) This method returns a Float instance representing the specified float value. |
23 |
static Float valueOf(String s) This method returns a Float object holding the float value represented by the argument string s. |
Methods inherited
This class inherits methods from the following classes:- java.lang.Object
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