HalfFloat

java.lang.Object
- java.lang.Number
- - ohos.utils.HalfFloat

所有已实现的接口:

Serializable
```
public class HalfFloat
extends Number
```
Encapsulates data of the half-precision floating-point format.

从以下版本开始:

3

另请参阅:

序列化表格

方法概要

所有方法静态方法实例方法具体方法
限定符和类型	方法	说明
`byte`	`byteValue()`	Returns the value of the specified number as a `byte`, which may involve rounding or truncation.
`double`	`doubleValue()`	Returns the value of the specified number as a `double`, which may involve rounding.
`boolean`	`equals(Object obj)`	Indicates whether some other object is "equal to" this one.
`float`	`floatValue()`	Returns the value of the specified number as a `float`, which may involve rounding.
`int`	`hashCode()`	Returns a hash code value for the object.
`int`	`intValue()`	Returns the value of the specified number as an `int`, which may involve rounding or truncation.
`long`	`longValue()`	Returns the value of the specified number as a `long`, which may involve rounding or truncation.
`short`	`shortValue()`	Returns the value of the specified number as a `short`, which may involve rounding or truncation.
`String`	`toString()`	Returns a string representation of the object.
`short`	`value()`	Obtains the `short` representation of this `HalfFloat` instance.
`static HalfFloat`	`valueOf(float value)`	Creates a `HalfFloat` instance representing the specified `value` of the `float` type.
`static HalfFloat`	`valueOf(short value)`	Creates a `HalfFloat` instance representing the specified `value` of the `short` type.
`static HalfFloat`	`valueOf(String value)`	Creates a `HalfFloat` instance representing the specified `value` of the `String` type.

从类继承的方法 java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- 方法详细资料
  - valueOf
```
public static HalfFloat valueOf(short value)
```
    Creates a HalfFloat instance representing the specified value of the short type.
    
    参数:
    
    value - Indicates the short type of value to parse.
    
    返回:
    
    HalfFloat instance representing the specified value
    
    从以下版本开始:
    
    3
  - valueOf
```
public static HalfFloat valueOf(float value)
```
    Creates a HalfFloat instance representing the specified value of the float type.
    
    参数:
    
    value - Indicates the float type of value to parse.
    
    返回:
    
    HalfFloat instance representing the specified value
    
    从以下版本开始:
    
    3
  - valueOf
```
public static HalfFloat valueOf(String value)
```
    Creates a HalfFloat instance representing the specified value of the String type.
    
    参数:
    
    value - Indicates the String type of value to parse. value must be a String representation of the Float type, for example, "0.0f" and "4e2f".
    
    返回:
    
    HalfFloat instance representing the specified value
    
    抛出:
    
    NumberFormatException - Throws this exception if the specified value cannot be converted to the Float type.
    
    NullPointerException - Throws this exception if value is null.
    
    从以下版本开始:
    
    3
  - value
```
public short value()
```
    Obtains the short representation of this HalfFloat instance.
    
    返回:
    
    Returns the short representation of this HalfFloat instance.
    
    从以下版本开始:
    
    3
  - byteValue
```
public byte byteValue()
```
    从类复制的说明: Number
    
    Returns the value of the specified number as a byte, which may involve rounding or truncation.
    This implementation returns the result of Number.intValue() cast to a byte.
    
    覆盖:
    
    byteValue 在类中 Number
    
    返回:
    
    the numeric value represented by this object after conversion to type byte.
  - shortValue
```
public short shortValue()
```
    从类复制的说明: Number
    
    Returns the value of the specified number as a short, which may involve rounding or truncation.
    This implementation returns the result of Number.intValue() cast to a short.
    
    覆盖:
    
    shortValue 在类中 Number
    
    返回:
    
    the numeric value represented by this object after conversion to type short.
  - intValue
```
public int intValue()
```
    从类复制的说明: Number
    
    Returns the value of the specified number as an int, which may involve rounding or truncation.
    
    指定者:
    
    intValue 在类中 Number
    
    返回:
    
    the numeric value represented by this object after conversion to type int.
  - longValue
```
public long longValue()
```
    从类复制的说明: Number
    
    Returns the value of the specified number as a long, which may involve rounding or truncation.
    
    指定者:
    
    longValue 在类中 Number
    
    返回:
    
    the numeric value represented by this object after conversion to type long.
  - floatValue
```
public float floatValue()
```
    从类复制的说明: Number
    
    Returns the value of the specified number as a float, which may involve rounding.
    
    指定者:
    
    floatValue 在类中 Number
    
    返回:
    
    the numeric value represented by this object after conversion to type float.
  - doubleValue
```
public double doubleValue()
```
    从类复制的说明: Number
    
    Returns the value of the specified number as a double, which may involve rounding.
    
    指定者:
    
    doubleValue 在类中 Number
    
    返回:
    
    the numeric value represented by this object after conversion to type double.
  - equals
```
public boolean equals(Object obj)
```
    从类复制的说明: Object
    Indicates whether some other object is "equal to" this one.
    The equals method implements an equivalence relation on non-null object references:
    - It is reflexive: for any non-null reference value x, x.equals(x) should return true.
    - It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
    - It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
    - It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
    - For any non-null reference value x, x.equals(null) should return false.
    The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any non-null reference values x and y, this method returns true if and only if x and y refer to the same object (x == y has the value true).
    Note that it is generally necessary to override the hashCode method whenever this method is overridden, so as to maintain the general contract for the hashCode method, which states that equal objects must have equal hash codes.
    覆盖:
    
    equals 在类中 Object
    
    参数:
    
    obj - the reference object with which to compare.
    
    返回:
    
    true if this object is the same as the obj argument; false otherwise.
    
    另请参阅:
    
    Object.hashCode(), HashMap
  - hashCode
```
public int hashCode()
```
    从类复制的说明: Object
    Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by HashMap.
    The general contract of hashCode is:
    - Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
    - If two objects are equal according to the equals(Object) method, then calling the hashCode method on each of the two objects must produce the same integer result.
    - It is not required that if two objects are unequal according to the Object.equals(java.lang.Object) method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.
    As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the Java™ programming language.)
    覆盖:
    
    hashCode 在类中 Object
    
    返回:
    
    a hash code value for this object.
    
    另请参阅:
    
    Object.equals(java.lang.Object), System.identityHashCode(java.lang.Object)
  - toString
```
public String toString()
```
    从类复制的说明: Object
    Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.
    The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:
    getClass().getName() + '@' + Integer.toHexString(hashCode())
    覆盖:
    
    toString 在类中 Object
    
    返回:
    
    a string representation of the object.

类 HalfFloat

方法概要

从类继承的方法 java.lang.Object

方法详细资料

valueOf

valueOf

valueOf

value

byteValue

shortValue

intValue

longValue

floatValue

doubleValue

equals

hashCode

toString