rotateleft

整數(shù)類rotateLeft()方法 (Integer class rotateLeft() method)

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

  rotationLeft()方法在java.lang包中可用。

• rotateLeft() method is used to returns the value generated by rotating the binary 2's complement denotation of the given argument (value) left by the given number of bits.

  rotationLeft()方法用于返回通過旋轉給定位數(shù)剩下的給定參數(shù)(值)的二進制2的補碼表示而生成的值。

• rotateLeft() 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.

  rotationLeft()方法是一個靜態(tài)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，那么也不會收到錯誤。

• rotateLeft() method does not throw an exception at the time of rotating or shifting of bits.

  旋轉或移位位時， rotateLeft()方法不會引發(fā)異常。

Syntax:

句法：

public static int rotateLeft(int value, int rotation);

Parameter(s):

參數(shù)：

• int value – represents the integer value to be parsed.

  int value –表示要解析的整數(shù)值。

• int rotation – represents the distance of rotation.

  int rotation –表示旋轉距離。

Return value:

返回值：

The return type of this method is int, it returns an integer value generated by rotating the 2's complement binary of the given integer value left by the given number of bits.

此方法的返回類型為int ，它返回一個整數(shù)值，該整數(shù)值是通過將給定整數(shù)值的2的補碼二進制數(shù)旋轉給定位數(shù)而生成的。

Example:

例：

// Java program to demonstrate the example // of rotateLeft(int value, int rotation) method of Integer classpublic class RotateLeftOfIntegerClass {public static void main(String[] args) {int value = 3;int rotation = 1;// Iterates till the value of rotation reacheswhile (rotation < 4) {// It return the value generated by rotating the // 2's //complement of the given argument (value) left // by given number of bitsvalue = Integer.rotateLeft(value, 3);System.out.println("value: " + value);++rotation;}} }

Output

輸出量

value: 24 value: 192 value: 1536

翻譯自: https://www.includehelp.com/java/integer-class-rotateleft-method-with-example.aspx

rotateleft

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