[Java]-汉诺塔

递归最重要的两个部分就是边界范围和递归体！这里的边界范围就是n==1的时候

汉诺塔动态演示

三个汉诺塔图解：

代码实现：

public class MainClass {
    public static void main(String[] args) {
        int nDisks = 3;
        doTowers(nDisks, 'A', 'B', 'C');
    }
    public static void doTowers(int topN, char from, char inter, char to) {
        if (topN == 1){
            System.out.println("Disk 1 from "
            + from + " to " + to);
        }else {
            doTowers(topN - 1, from, to, inter);
            System.out.println("Disk "
            + topN + " from " + from + " to " + to);
            doTowers(topN - 1, inter, from, to);
        }
    }
}