该setBit()
方法在Java中用于返回一个BigInteger,其值等于具有指定位集的此BigInteger。
import java.math.*; public class BigIntegerDemo { public static void main(String[] args) { BigInteger one, two; one = new BigInteger("7"); two = one.setBit(3); System.out.println("Result: " +two); } }
输出结果
Result: 15
让我们来看另一个例子。
import java.math.*; public class Demo { public static void main(String[] args) { BigInteger bi1, bi2; bi1 = new BigInteger("9"); //使用索引3的setbit操作 bi2 = bi1.setBit(3); String res = "Setbit operation on " +bi1+ " at index 3 gives " +bi2; System.out.println(res); } }
输出结果
Setbit operation on 9 at index 3 gives 9