Java BigInteger类| mod（）方法与示例

BigInteger Class mod()方法 (BigInteger Class mod() method)

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

  mod()方法在java.math包中可用。

• mod() method is used to calculate the mod by using (this BigInteger % BigInteger val).

  mod()方法用于通过使用(此BigInteger％BigInteger val)来计算mod。

• mod() 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.

  mod()方法是一种非静态方法，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。

• mod() method may throw an exception at the time of returning mod.

  在返回mod时， mod()方法可能会引发异常。

  ArithmeticException: This exception may throw when the given parameter holds value 0 or negative.

  ArithmeticException ：当给定参数的值为0或负数时，可能引发此异常。

Syntax:

句法：

    public BigInteger mod(BigInteger val);

Parameter(s):

参数：

• BigInteger val – represents the object by which to calculate mod.

  BigInteger val –表示用于计算mod的对象。

Return value:

返回值：

The return type of this method is BigInteger, it returns the mod by using (this BigInteger) % (BigInteger val).

此方法的返回类型为BigInteger ，它使用(this BigInteger)％(BigInteger val)返回mod。

Example:

例：

// Java program to demonstrate the example 
// of BigInteger mod(BigInteger val) method of BigInteger

import java.math.*;

public class ModOfBI {
    public static void main(String args[]) {
        // Initialize three variables str1, str2 and str3
        String str1 = "101";
        String str2 = "-80";
        String str3 = "2";

        // Initialize three BigInteger objects  
        BigInteger b_int1 = new BigInteger(str1);
        BigInteger b_int2 = new BigInteger(str2);
        BigInteger b_int3 = new BigInteger(str3);

        // Display b_int1 , b_int2 and b_int3
        System.out.println("b_int1: " + b_int1);
        System.out.println("b_int2: " + b_int2);
        System.out.println("b_int3: " + b_int3);

        System.out.println();

        // calculating mod between two BigInteger values 
        // [(this BigInteger b_int1) mod (BigInteger b_int3) ] 
        // by using mod(BigInteger) method
        BigInteger mod_val = b_int1.mod(b_int3);
        System.out.println("b_int1.mod(b_int3): " + mod_val);


        // calculating mod between two BigInteger values 
        // [(this BigInteger b_int2) mod (BigInteger b_int3) ] 
        // by using mod(BigInteger) method
        mod_val = b_int2.mod(b_int3);
        System.out.println("b_int2.mod(b_int3): " + mod_val);
    }
}

Output

输出量

b_int1: 101
b_int2: -80
b_int3: 2

b_int1.mod(b_int3): 1
b_int2.mod(b_int3): 0

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