递归应用-汉诺塔java

public class HanoiTower
{
public static void main(String[] args) {
HanoiTower.doTower(3,'A','B','C');
}
/**
* topN total
* form
* inter
* to
*/
public static void doTower(int topN,char from,char inter,char to)
{
if(topN == 1){
System.out.println("Tower 1 from"+ from + " to "+to);
}else{
doTower(topN - 1,from,to,inter);
System.out.println("Tower "+ topN + "from "+ from+ " to "+to);
doTower(topN - 1,inter,from,to);
}
}
}