Java 中的 BigInteger not()方法
原文:https://www . geesforgeks . org/big integer-not-in-method-Java/
Java . math . BigInteger . NOT()方法用于查找 BigInteger 的按位非。当且仅当此 BigInteger 为非负值时，此方法返回负值。方法对当前的大整数应用按位非运算。
语法:
public BigInteger not()
参数:该方法不取任何参数。
返回值:该方法返回与其一起使用的大整数的按位非值。
例:
Input: value = 2300
Output: -2301
Explanation:
Binary of 2300 = 100011111100
NOT of 100011111100 in signed 2's complement is 1111011100000011
Decimal value = -2301.
Input: value = 567689
Output: -567690
下面程序举例说明 BigInteger()的 not()方法:
/*
*Program Demonstrate not() method of BigInteger
*/
import java.math.*;
public class GFG {
public static void main(String[] args)
{
// Creates BigInteger object
BigInteger biginteger = new BigInteger("2300");
// Call not() method to find ~this
BigInteger finalvalue = biginteger.not();
String result = "Result of NOT operation on " +
biginteger + " is " + finalvalue;
// Print result
System.out.println(result);
}
}
输出:
Result of NOT operation on 2300 is -2301
参考:https://docs . Oracle . com/javase/7/docs/API/Java/math/big integer . html #和(java.math.BigInteger)
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