所谓 "水仙花数 "是指一个三位数,其各位数字立方和等于该数本身。例如:153是一个 "水仙花数 ",因为153=1的三次方+5的三次方+3的三次方。代码重点在于拆分三位数,直接看代码:
package cn.ns.logic;
/**
* 输出所有水仙花数
*/
public class ShuiXianHua {
public static void main(String[] args){
StringBuffer buffer = new StringBuffer();
int baiwei = 0;
int shiwei = 0;
int gewei = 0;
for(int i=100;i<1000;i++){
baiwei = i/100;
shiwei = (i/10)%10;
gewei = i%10;
if(i == baiwei * baiwei * baiwei + shiwei * shiwei * shiwei + gewei * gewei * gewei){
buffer.append(i+",");
}
}
System.out.println(buffer.deleteCharAt(buffer.length()-1).toString());
}
}