Class ng.Float

All Packages Class Hierarchy This Package Previous Next Index Class java.lang.Float java.lang.Object | +----java.lang.Number | +----java.lang.Float public final class Float extends Number The Float class provides an object wrapper for Float data values, and serves as a place for float-oriented operations. A wrapper is useful because most of Java's utility classes require the use of objects. Since floats are not objects in Java, they need to be "wrapped" in a Float instance.

MAX_VALUE The maximum value a float can have. MIN_VALUE The minimum value a float can have. NaN Not-a-Number. NEGATIVE_INFINITY Negative infinity. POSITIVE_INFINITY Positive infinity.

Float(double) Constructs a Float wrapper for the specified double value. Float(float) Constructs a Float wrapper for the specified float value. Float(String) Constructs a Float object initialized to the value specified by the String parameter.

doubleValue() Returns the double value of this Float. equals(Object) Compares this object against some other object. floatToIntBits(float) Returns the bit represention of a single-float value floatValue() Returns the float value of this Float object. hashCode() Returns a hashcode for this Float. intBitsToFloat(int) Returns the single-float corresponding to a given bit represention. intValue() Returns the integer value of this Float (by casting to an int). isInfinite() Returns true if this Float value is infinitely large in magnitude. isInfinite(float) Returns true if the specified number is infinitely large in magnitude. isNaN() Returns true if this Float value is Not-a-Number (NaN). isNaN(float) Returns true if the specified number is the special Not-a-Number (NaN) value. longValue() Returns the long value of this Float (by casting to a long). toString() Returns a String representation of this Float object. toString(float) Returns a String representation for the specified float value. valueOf(String) Returns the floating point value represented by the specified String.

POSITIVE_INFINITY public final static float POSITIVE_INFINITY Positive infinity. NEGATIVE_INFINITY public final static float NEGATIVE_INFINITY Negative infinity. NaN public final static float NaN Not-a-Number. Is not equal to anything, including itself. MAX_VALUE public final static float MAX_VALUE The maximum value a float can have. The largest maximum value possible is 3.40282346638528860e+38. MIN_VALUE public final static float MIN_VALUE The minimum value a float can have. The lowest minimum value possible is 1.40129846432481707e-45.

Float public Float(float value) Constructs a Float wrapper for the specified float value. Parameters: value - the value of the Float Float public Float(double value) Constructs a Float wrapper for the specified double value. Parameters: value - the value of the Float Float public Float(String s) throws NumberFormatException Constructs a Float object initialized to the value specified by the String parameter. Parameters: s - the String to be converted to a Float Throws: NumberFormatException If the String does not contain a parsable number.

toString public static String toString(float f) Returns a String representation for the specified float value. Parameters: f - the float to be converted valueOf public static Float valueOf(String s) throws NumberFormatException Returns the floating point value represented by the specified String. Parameters: s - the String to be parsed Throws: NumberFormatException If the String does not contain a parsable Float. isNaN public static boolean isNaN(float v) Returns true if the specified number is the special Not-a-Number (NaN) value. Parameters: v - the value to be tested isInfinite public static boolean isInfinite(float v) Returns true if the specified number is infinitely large in magnitude. Parameters: v - the value to be tested isNaN public boolean isNaN() Returns true if this Float value is Not-a-Number (NaN). isInfinite public boolean isInfinite() Returns true if this Float value is infinitely large in magnitude. toString public String toString() Returns a String representation of this Float object. Overrides: toString in class Object intValue public int intValue() Returns the integer value of this Float (by casting to an int). Overrides: intValue in class Number longValue public long longValue() Returns the long value of this Float (by casting to a long). Overrides: longValue in class Number floatValue public float floatValue() Returns the float value of this Float object. Overrides: floatValue in class Number doubleValue public double doubleValue() Returns the double value of this Float. Overrides: doubleValue in class Number hashCode public int hashCode() Returns a hashcode for this Float. Overrides: hashCode in class Object equals public boolean equals(Object obj) Compares this object against some other object. To be useful in hashtables this method considers two Nan floating point values to be equal. This is not according to IEEE specification. Parameters: obj - the object to compare with Returns: true if the objects are the same; false otherwise. Overrides: equals in class Object floatToIntBits public static int floatToIntBits(float value) Returns the bit represention of a single-float value intBitsToFloat public static float intBitsToFloat(int bits) Returns the single-float corresponding to a given bit represention. All Packages Class Hierarchy This Package Previous Next Index