1.代码:

public class Ta {
    public static void main(String[] args) {
        Tower tower = new Tower();
        tower.move(3, 'A', 'B', 'C');
    }
}
class Tower {
    public void move(int num , char src, char tmp ,char tgt) {
        if(num == 1) {
            System.out.println(src + "->" + tgt);
        } else {
            move(num - 1 , src, tgt, tmp);//src(A), tmp(C), tgt(B)
            System.out.println(src + "->" + tgt);// A -> B
            move(num - 1, tmp, src, tgt);
        }
    }
}

2.流程图分析:

画了20分钟，有点潦草，还请见谅

以上代码运行结果为：

A->C
A->B
C->B
A->C
B->A
B->C
A->C