计算1~20的阶乘:123…*20
具体代码如下:
package day03;
public class Multiplication {
public static void main(String[] args) {
// 计算1~20的阶乘:1*2*3...*20=2432902008176640000
long sum = 1;
for(int i = 2; i <= 20; i++) {
sum = sum * i;
}
System.out.println("1*2*3...*20=" + sum);
}
}