BigInteger类hashCode()方法 (BigInteger Class hashCode() method)

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

  hashCode()方法在java.math包中可用。

• hashCode() method is used to return the hash code value of this BigInteger.

  hashCode()方法用于返回此BigInteger的哈希码值。

• hashCode() 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.

  hashCode()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。

• hashCode() method does not throw an exception at the time of returning hash code.

  hashCode()方法在返回哈希码时不会引发异常。

Syntax:

句法：

    public int hashCode();

Parameter(s):

参数：

• None

  没有

Return value:

返回值：

The return type of this method is int, it retrieves this BigInteger hash code value.

此方法的返回类型为int ，它检索此BigInteger哈希码值。

Example:

例：

// Java program to demonstrate the example 
// of int hashCode() method of BigInteger
import java.math.*;
public class HashCodeOfBI {
public static void main(String args[]) {
// Initialize two variables str1 and str2
String str1 = "101245";
String str2 = "50145779658";
// Initialize two BigInteger object 
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);
System.out.println();
// returns the hash code value of this
// BigInteger b_int1
int hash_code = b_int1.hashCode();
System.out.println("b_int1.hashCode(): " + hash_code);
// returns the hash code value of this
// BigInteger b_int2
hash_code = b_int2.hashCode();
System.out.println("b_int2.hashCode(): " + hash_code);
}
}

Output

输出量

b_int1: 101245
b_int2: 50145779658b_int1.hashCode(): 101245
b_int2.hashCode(): -1393827553

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