BigInteger类和()方法 (BigInteger Class and() method)

• and() method is available in java.math package.

  and()方法在java.math包中可用。

• and() method is used to perform and operation between this BigInteger and the given BigInteger (val) [i.e. (this BigInteger) & (BigInteger val)].

  and()方法用于在此BigInteger和给定的BigInteger(val)[即(此BigInteger)＆(BigInteger val)]之间执行和操作。

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

  and()方法是一个非静态方法，只能通过类对象访问，如果尝试使用类名称访问该方法，则会收到错误消息。

• and() method does not throw an exception at the time of performing and operation.

  and()方法在执行和操作时不会引发异常。

Syntax:

句法：

    public BigInteger and(BigInteger val);

Parameter(s):

参数：

• BigInteger val – represents the object is to perform and operation with this BigInteger.

  BigInteger val –表示要使用此BigInteger执行和操作的对象。

Return value:

返回值：

The return type of this method is BigInteger, it returns BigInteger and its value is calculated by using [(this BigInteger) and (BigInteger val)].

此方法的返回类型为BigInteger ，它返回BigInteger，其值是使用[(this BigInteger)和(BigInteger val)]来计算的。

Example:

例：

// Java program to demonstrate the example 
// of BigInteger and() method of BigInteger
import java.math.*;
public class AndOfBI {
public static void main(String args[]) {
// Initialize two variables str1 and str2
String str1 = "10";
String str2 = "4";
// Initialize two BigInteger objects 
BigInteger b_int1 = new BigInteger(str1);
BigInteger b_int2 = new BigInteger(str2);
System.out.println("b_int1: " + b_int1);
System.out.println("b_int2: " + b_int2);
// perform logical and (&) operation between 
// this BigInteger b_int1 and the given BigInteger
// b_int2 like 10 & 4 so the binary representation 
// of 10 is 1010 and for 4 is 0100 so when we perform
// & operation between bits it sets 1 when both bits
// value are 1 otherwise it sets 0 so the result is
// (1010 & 0100 = 0000)
BigInteger and_val = b_int1.and(b_int2);
System.out.println("b_int1.and(b_int2): " + and_val);
}
}

Output

输出量

b_int1: 10
b_int2: 4
b_int1.and(b_int2): 0

翻译自: https://www.includehelp.com/java/biginteger-and-method-with-example.aspx