public class Shuixianhuashu {
    public static void main(String[] args) {
        for (int i = 100; i < 1000; i++) {
            int a = i / 100;
            int b = i / 10 % 10;
            int c = i % 10;
            if (Math.pow(a, 3) + Math.pow(b, 3) + Math.pow(c, 3) == i)
                System.out.println(i + "是水仙花数");
        }
    }

}

------解决方案--------------------

public class Test {

	public static void main(String[] args) {
		int a,b,c;
		
		for(int i=100; i<1000; i++) {
			a = i/100;
			b = (i-a*100)/10;
			c = i-a*100-b*10;
			if(i == a*a*a + b*b*b + c*c*c) {
				System.out.println(i);
			}
		}
	}

}