long类型20位示例_Java Long类numberOfTrailingZeros()方法及示例
long類型20位示例
長類numberOfTrailingZeros()方法 (Long class numberOfTrailingZeros() method)
numberOfTrailingZeros() method is available in java.lang package.
在java.lang包中提供了numberOfTrailingZeros()方法 。
numberOfTrailingZeros() method is used to returns the number of 0's bits following the rightmost one bit in the 2's complement denotation of the given parameter [value] of long type.
numberOfTrailingZeros()方法用于返回long類型給定參數[value]的2的補碼表示法中最右邊一位之后的0位數。
numberOfTrailingZeros() 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.
numberOfTrailingZeros()方法是一個靜態方法,也可以使用類名進行訪問,如果我們嘗試使用類對象訪問該方法,那么也不會出錯。
numberOfTrailingZeros() method does not throw an exception at the time of trailing zeros.
在尾隨零時, numberOfTrailingZeros()方法不會引發異常。
Syntax:
句法:
public static int numberOfTrailingZeros (long value);Parameter(s):
參數:
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 int, it returns the integer value based on the following cases,
此方法的返回類型為int ,它基于以下情況返回整數值:
If the given argument is non-zero then, it returns the number of 0's bits followed the rightmost bit one bit in 2's complement of the given long value.
如果給定的參數不為零,則返回給定long值的2的補碼中,最右邊的一位之后是0的位數。
Else, if the given argument is zero then, it returns the value 64 because it has no 1's bits in 2's complement of the given argument.
否則,如果給定參數為零,則它將返回值64,因為在給定參數的2的補碼中沒有1的位。
Example:
例:
// Java program to demonstrate the example // of numberOfTrailingZeros (long value) method of Long classpublic class NumberOfTrailingZerosOfLongClass {public static void main(String[] args) {long value1 = 1296;long value2 = 0;// It returns the string representation of the given unsigned // long value denoted by the argument in binary by calling// Long.toBinaryString(value1)System.out.println("Long.toBinaryString(value1): " + Long.toBinaryString(value1));// It returns the string representation of the given unsigned // long value denoted by the argument in binary by calling// Long.toBinaryString(value2) System.out.println("Long.toBinaryString(value2):" + Long.toBinaryString(value2));// It returns the number of 0's bits following the leftmost side // one bit in the given argument 'value' by calling // Long.numberOfTrailingZeros(value1)System.out.println("Long.numberOfTrailingZeros(value1): " + Long.numberOfTrailingZeros(value1));// It returns the value 64 because the value of the given argument is zero System.out.println("Long.numberOfTrailingZeros(value2): " + Long.numberOfTrailingZeros(value2));} }Output
輸出量
Long.toBinaryString(value1): 10100010000 Long.toBinaryString(value2):0 Long.numberOfTrailingZeros(value1): 4 Long.numberOfTrailingZeros(value2): 64翻譯自: https://www.includehelp.com/java/long-class-numberoftrailingzeros-method-with-example.aspx
long類型20位示例
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