Tower of hanoi

class TowerOfHanoi{

public static void main(String args[]){

TowerOfHanoi obj = new TowerOfHanoi();

int numOfDisk = 4;

obj.solveProb(4,'A','B','C');

}

public void solveProb(int num, char start, char interim, char end){

if(num==1)

System.out.println("Disk 1 from "+start+" to "+end);

else{

solveProb(num-1,start,end,interim);

System.out.println("Disk "+num+" from "+start+" to "+end);

solveProb(num-1,interim,start,end);

}

}

}