bytevalue_Java Number byteValue（）方法与示例

bytevalue

Number类byteValue()方法 (Number Class byteValue() method)

byteValue() method is available in java.lang package.
byteValue()方法在java.lang包中可用。
byteValue() method is used to return the value denoted by this Number object converted to type byte (by casting).
byteValue()方法用于返回此Number对象表示的值(转换为字节类型)(通过强制转换)。
byteValue() method is a non-static method, it is accessible with class object only and if we try to access the method with class name then we will get an error.
byteValue()方法是一种非静态方法，只能通过类对象访问，如果尝试使用类名访问该方法，则会收到错误消息。
byteValue() method does not throw an exception at the time of conversion from Number to byte.
从Number转换为字节时， byteValue()方法不会引发异常。

Syntax:

句法：

    public byte byteValue();

Parameter(s):

参数：

It does not accept any parameter.
它不接受任何参数。

Return value:

返回值：

The return type of this method is byte, it returns a converted (from type Number to byte) value represented by this Number object.

此方法的返回类型为byte ，它返回一个由此Number对象表示的转换后的值(从Number类型转换为byte类型)。

Example:

例：

// Java program to demonstrate the example 
// of byteValue() method of Number class
public class ByteValueOfNumberClass {
public static void main(String[] args) {
// Variables initialization
int i1 = 10;
float f1 = 20.62f;
// It returns byte value denoted by this Number object
// and converted to a byte by calling i.byteValue()
Integer i = new Integer(i1);
// Display i result
System.out.println("i.byteValue(): " + i.byteValue());
// It returns byte value denoted by this Number object
// and converted to a byte by calling f.byteValue()
Float f = new Float(f1);
// Display f result
System.out.println("f.byteValue(): " + f.byteValue());
}
}

Output

输出量