java bitset

BitSet类的size()方法 (BitSet Class size() method)

• size() method is available in java.util package.

  size()方法在java.util包中可用。

• size() method is used to return the size (i.e. the memory allocated to the actual number of bits by using this BitSet to denote bits.

  size()方法用于返回大小(即通过使用此BitSet表示位来分配给实际位数的内存)。

• size() method is a non-static method, so it is accessible with the class object and if we try to access the method with the class name then we will get an error.

  size()方法是一种非静态方法，因此可以通过类对象进行访问，如果尝试使用类名称访问该方法，则会收到错误消息。

• size() method does not throw an exception at the time of returning the size of this BitSet.

  返回此BitSet的大小时， size()方法不会引发异常。

Syntax:

句法：

public int size();

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 int, it returns the size (i.e. the number of bits sets in this BitSet).

此方法的返回类型为int ，它返回大小(即此BitSet中的位数设置)。

Example:

例：

// Java program to demonstrate the example // of int size() method of BitSet.import java.util.*;public class SizeOfBitSet {
       public static void main(String[] args) {
           // create an object of BitSet        BitSet bs = new BitSet(10);        // By using set() method is to set        // the values in BitSet         bs.set(10);        bs.set(20);        bs.set(30);        bs.set(40);        bs.set(50);        // Display Bitset        System.out.println("bs: " + bs);        // By using size() method is to return         // the size of this BitSet        int size = bs.size();        // Display size        System.out.println("bs.size(): " + size);    }}

Output

输出量

bs: {10, 20, 30, 40, 50}bs.size(): 64

翻译自:

java bitset