Java 中的 BigInteger 求反()方法
原文:https://www . geesforgeks . org/big integer-否定方法 in-java/
先决条件:大整数基础知识 方法返回一个值为(- this)的大整数。方法将改变 BigInteger 的信号位。
语法:
public BigInteger negate()
参数:该方法不接受任何参数。
返回值:方法返回(- this)的运算。
示例:
Input: value = 2300
Output: -2300
Explanation:
Binary signed 2's complement of 2300 = 0000100011111100
Singed bit are 0000
change sing bit to 1111
so negate of 0000100011111100 in signed 2's complement is 1111011100000100
Decimal value = -2300.
Input: value = 567689
Output: -567689
下面的程序说明了 BigInteger 的否定()方法。
/*
*Program Demonstrate negate() method of BigInteger
*/
import java.math.*;
public class GFG {
public static void main(String[] args)
{
// Create BigInteger object
BigInteger biginteger = new BigInteger("2300");
// Call negate() method to find -this
BigInteger finalvalue = biginteger.negate();
String result = "Result of negate operation on " +
biginteger + " is " + finalvalue;
// Prints result
System.out.println(result);
}
}
Output:
Result of negate operation on 2300 is -2300
参考:https://docs . Oracle . com/javase/7/docs/API/Java/math/biginteger . html # negative()
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