Java.lang.Float Class
Java Float Class
The Float class in the Java.lang package i.e. Java.lang.Float encapsulates a value of primitive type float in an object. A single field of type float is included in a Float object.
This class also has methods for converting a float to a String and a String to a float, as well as additional constants and methods that are handy when working with floats.
Class declaration
The declaration of java.lang.Float class is:
public final class Float
extends Number
implements Comparable<Float>
Fields
| S.N | Fields & Description |
|---|---|
| 1. | static int BYTES The number of bytes used to represent a float value. |
| 2. | static int MAX_EXPONENT Maximum exponent a finite float variable may have. |
| 3. | static float MAX_VALUE A constant holding the largest positive finite value of type float, (2-2-23)·2127. |
| 4. | static int MIN_EXPONENT Minimum exponent a normalized float variable may have. |
| 5. | static float MIN_NORMAL A constant holding the smallest positive normal value of type float, 2-126. |
| 6. | static float MIN_VALUE A constant holding the smallest positive nonzero value of type float, 2-149. |
| 7. | static float NaN A constant holding a Not-a-Number (NaN) value of type float. |
| 8. | static float NEGATIVE_INFINITY A constant holding the negative infinity of type float. |
| 9. | static float POSITIVE_INFINITY A constant holding the positive infinity of type float. |
| 10. | static int SIZE The number of bits used to represent a float value. |
| 11. | static Class<Float> TYPE The Class instance representing the primitive type float. |
java.lang.Float Methods
The java.lang.Float class has a number of methods which are listed below:
Member Methods
| S.N | Methods & Description |
|---|---|
| 1. | byte byteValue() Returns the value of this Float as a byte after a narrowing primitive conversion. |
| 2. | static int compare(float f1, float f2) Compares the two specified float values. |
| 3. | int compareTo(Float anotherFloat) Compares two Float objects numerically. |
| 4. | double doubleValue() Returns the value of this Float as a double after a widening primitive conversion. |
| 5. | boolean equals(Object obj) Compares this object against the specified object. |
| 6. | static int floatToIntBits(float value) 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) 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() Returns the float value of this Float object. |
| 9. | int hashCode() Returns a hash code for this Float object. |
| 10. | static int hashCode(float value) Returns a hash code for a float value; compatible with Float.hashCode(). |
| 11. | static float intBitsToFloat(int bits) Returns the float value corresponding to a given bit representation. |
| 12. | int intValue() Returns the value of this Float as an int after a narrowing primitive conversion. |
| 13. | static boolean isFinite(float f) Returns true if the argument is a finite floating-point value; returns false otherwise (for NaN and infinity arguments). |
| 14. | boolean isInfinite() Returns true if this Float value is infinitely large in magnitude, false otherwise. |
| 15. | static boolean isInfinite(float v) Returns true if the specified number is infinitely large in magnitude, false otherwise. |
| 16. | boolean isNaN() Returns true if this Float value is a Not-a-Number (NaN), false otherwise. |
| 17. | static boolean isNaN(float v) Returns true if the specified number is a Not-a-Number (NaN) value, false otherwise. |
| 18. | long longValue() Returns value of this Float as a long after a narrowing primitive conversion. |
| 19. | static float max(float a, float b) Returns the greater of two float values as if by calling Math.max. |
| 20. | static float min(float a, float b) Returns the smaller of two float values as if by calling Math.min. |
| 21. | static float parseFloat(String s) Returns a new float initialized to the value represented by the specified String, as performed by the valueOf method of class Float. |
| 22. | short shortValue() Returns the value of this Float as a short after a narrowing primitive conversion. |
| 23. | static float sum(float a, float b) Adds two float values together as per the + operator. |
| 24. | static String toHexString(float f) Returns a hexadecimal string representation of the float argument. |
| 25. | String toString() Returns a string representation of this Float object. |
| 26. | static String toString(float f) Returns a string representation of the float argument. |
| 27. | static Float valueOf(float f) Returns a Float instance representing the specified float value. |
| 28. | static Float valueOf(String s) Returns a Float object holding the float value represented by the argument string s. |
Methods inherited
This class inherits the methods of the following class:
- java.lang.Object
- java.lang.Number
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