BigInteger类gcd()方法 (BigInteger Class gcd() method)

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

  gcd()方法在java.math包中可用。

• gcd() method is used to return the greatest common divisor of the absolute of this BigInteger and the given parameter (val).

  gcd()方法用于返回此BigInteger的绝对值和给定参数(val)的最大公约数。

• gcd() 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.

  gcd()方法是一种非静态方法，仅可通过类对象访问，如果尝试使用类名访问该方法，则会收到错误消息。

• gcd() method does not throw an exception at the time of finding GCD.

  查找GCD时， gcd()方法不会引发异常。

Syntax:

句法：

public BigInteger gcd(BigInteger val);

Parameter(s):

参数：

• BigInteger val – represents the value of which the GCD is to calculate with this BigInteger.

  BigInteger val –表示GCD将使用此BigInteger计算的值。

Return value:

返回值：

The return type of this method is BigInteger, it returns BigInteger and its value is to returned in terms of GCD of and .

该方法的返回类型为BigInteger ，它返回BigInteger，其值将根据和的GCD返回。

Example:

例：

// Java program to demonstrate the example // of BigInteger gcd(BigInteger val) method of BigIntegerimport java.math.*;public class GCDOfBI {
       public static void main(String args[]) {
           // Initialize two variables str1 and str2        String str1 = "30";        String str2 = "50";        // Initialize two BigInteger objects          BigInteger b_int1 = new BigInteger(str1);        BigInteger b_int2 = new BigInteger(str2);        // Display b_int1 and b_int2        System.out.println("b_int1: " + b_int1);        System.out.println("b_int2: " + b_int2);        // calculates greatest common divisors        // (gcd) of two BigInteger values like        // b_int1.gcd(b_int2)         BigInteger gcd = b_int1.gcd(b_int2);        System.out.println("b_int1.gcd(b_int2): " + gcd);    }}

Output

输出量

b_int1: 30b_int2: 50b_int1.gcd(b_int2): 10

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