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| | | - | - | java.lang.Number | ||||||||||||||||||||||||||||||||||||||||
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| | | - | - | java.lang.Float | ||||||||||||||||||||||||||||||||||||||||
Float class wraps a value of type float in an object.
Field Summary
| Type | Field | Summary |
|---|---|---|
| static int | MAX_EXPONENT | Maximum exponent a finite float. |
| static float | MAX_VALUE | Largest positive finite value of type float. |
| static int | MIN_EXPONENT | Minimum exponent a normalized float variable may have. |
| static float | MIN_NORMAL | Smallest positive normal value of type float. |
| static float | MIN_VALUE | Smallest positive nonzero value of type float. |
| static float | NaN | Not-a-Number (NaN) value of type float. |
| static float | NEGATIVE_INFINITY | Negative infinity of type float. |
| static float | POSITIVE_INFINITY | Positive infinity of type float. |
| static int | SIZE | The number of bits used to represent a float value. |
| static Class | TYPE | The Class instance representing the primitive type float. |
| Constructor | Summary |
|---|---|
| Float(double value) | Creates a Float from double-type value. |
| Float(float value) | Creates a Float for the float argument. |
| Float(String s) | Creates a Float from a float represented by the string. |
Convert to byte, double, float, int, long and short
| Return | Method | Summary |
|---|---|---|
| byte | byteValue() | Returns this float as a byte. |
| double | doubleValue() | Returns the double value. |
| float | floatValue() | Returns the float value. |
| int | intValue() | Returns this float as an int by casting to type int. |
| long | longValue() | Returns this float as a long. |
| short | shortValue() | Returns this float as a short by casting. |
Compare two float objects
| Return | Method | Summary |
|---|---|---|
| static int | compare(float f1, float f2) | Compares the two specified float values. |
| int | compareTo(Float anotherFloat) | Compares two Float objects numerically. |
| boolean | equals(Object obj) | Compares this object against the specified object. |
Infinite and Not A Number
| Return | Method | Summary |
|---|---|---|
| boolean | isInfinite() | Returns true if this Float value is infinitely large in magnitude, false otherwise. |
| static boolean | isInfinite(float v) | Returns true if the specified number is infinitely large in magnitude, false otherwise. |
| boolean | isNaN() | Returns true if this Float value is a Not-a-Number (NaN), false otherwise. |
| static boolean | isNaN(float v) | Returns true if the specified number is a Not-a-Number (NaN) value, false otherwise. |
Convert float value to String value
| Return | Method | Summary |
|---|---|---|
| static String | toHexString(float f) | Returns a hexadecimal string representation of the float argument. |
| String | toString() | Returns a string representation of this Float object. |
| static String | toString(float f) | Returns a string representation of the float argument. |
Convert string value to float value
| Return | Method | Summary |
|---|---|---|
| static float | parseFloat(String s) | Returns a new float initialized to the value represented by the specified String. |
| static Float | valueOf(float f) | Returns a Float instance representing the specified float value. |
| static Float | valueOf(String s) | Returns a Float object holding the float value represented by the argument string s. |
Bit oriented
| Return | Method | Summary |
|---|---|---|
| static int | floatToIntBits(float value) | Returns a representation of the specified floating-point value. |
| static int | floatToRawIntBits(float value) | Returns a representation of the specified floating-point value. |
| static float | intBitsToFloat(int bits) | Returns the float value corresponding to a given bit representation. |
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