long类型20位示例

长类reverseBytes()方法 (Long class reverseBytes() method)

• reverseBytes() method is available in java.lang package.

  reverseBytes()方法在java.lang包中可用。

• reverseBytes() method is used to returns the value generated by reversing the order of bytes in binary 2's complement denotation of the given argument.

  reverseBytes()方法用于返回通过反转给定参数的二进制2的补码表示形式的字节顺序而生成的值。

• reverseBytes() method is a static method, it is accessible with the class name too and if we try to access the method with the class object then also we will not get an error.

  reverseBytes()方法是一个静态方法，也可以使用类名进行访问，如果我们尝试使用类对象访问该方法，那么也不会出错。

• reverseBytes() method does not throw an exception at the time of reversing the order of bytes.

  reverseBytes()方法在反转字节顺序时不会引发异常。

Syntax:

句法：

    public static long reverseBytes (long value);

Parameter(s):

参数：

• long value – represents the long value to be parsed.

  long value –表示要解析的long值。

Return value:

返回值：

The return type of this method is long, it returns a long value generated by reversing the bytes order in 2's complement of the given long value.

此方法的返回类型为long ，它返回通过以给定long值的2的补码反转字节顺序生成的long值。

Example:

例：

// Java program to demonstrate the example
// of reverseBytes(long value) method of Long class
public class ReverseBytesOfLongClass {public static void main(String[] args) {long value = 1296;
// Display value
System.out.println("value: " + value);
// It returns the string representation of the given unsigned
// long value denoted by the argument in binary by calling
// Long.toBinaryString(value)
System.out.println("Long.toBinaryString(value): " + Long.toBinaryString(value));
// It returns the value generated by reversing the order of the
// bytes in the given argument value by calling //Long.reverseBytes(value)
System.out.println("Long.reverseBytes(value): " + Long.reverseBytes(value));
}
}

Output

输出量

value: 1296
Long.toBinaryString(value): 10100010000
Long.reverseBytes(value): 1154328879490400256

翻译自: https://www.includehelp.com/java/long-class-reversebytes-method-with-example.aspx

long类型20位示例