Java xxxValue () method
xxxValue () method is used to convert an object to the valuexxx Number data type and return.
Related methods are:
| Types of | Method and Description |
|---|---|
| byte | byteValue (): Returns a byte value. |
| abstract double | doubleValue (): In double Returns the specified value. |
| abstract float | floatValue (): Returns a float value. |
| abstract int | intValue (): Returns as int the specified value. |
| abstract long | longValue (): In long form returns the specified value. |
| short | shortValue (): In short form returns the specified value. |
parameter
The above function does not accept any parameters.
return value
Afterxxx converted to a numeric representation of the type of the object.
Examples
public class Test{
public static void main(String args[]){
Integer x = 5;
// 返回 byte 原生数据类型
System.out.println( x.byteValue() );
// 返回 double 原生数据类型
System.out.println(x.doubleValue());
// 返回 long 原生数据类型
System.out.println( x.longValue() );
}
}
Compile the above program, the output is:
5 5.0 5