这个 JAVA数学大整数。挫折(指数) 方法返回一个大整数,其值等于指定位集的这个大整数。该方法计算(这个|(1<
null
语法:
public BigInteger setbit(int n)
参数: 该方法采用一个参数 N 它是指需要设置的位的索引。 返回值: 该方法在设置位位置n后返回BigInteger值。 例外情况: 该方法可能会引发 算术异常 当n为负时。。
例子 :
Input: value = 2300 index = 1Output: 2302Explanation:Binary Representation of 2300 = 100011111100bit at index 1 is 0 so set the bit at index 1 Now Binary Representation becomes 100011111110and Decimal equivalent of 100011111110 is 2302Input: value = 5482549 index = 1Output: 5482551
下面的程序演示了BigInteger的setBit(index)方法:
JAVA
// Program to demonstrate setBit() method of BigInteger import java.math.*; public class GFG { public static void main(String[] args) { // Creating BigInteger object BigInteger biginteger = new BigInteger(" 2300 "); // Creating an integer i for index int i = 1 ; // Calling setBit() method on bigInteger at index i // store the return BigInteger BigInteger changedvalue = biginteger.setBit(i); String result = "After applying setBit at index " + i + " of " + biginteger+ " New Value is " + changedvalue; // Displaying the result System.out.println(result); } } |
输出:
After applying setBit at index 1 of 2300 New Value is 2302
参考: https://docs.oracle.com/javase/7/docs/api/java/math/BigInteger.html#setBit(国际)
© 版权声明
文章版权归作者所有,未经允许请勿转载。
THE END