JavaAlgorithms/Others/TowerOfHanoi.java

28 lines
1.1 KiB
Java

package Others;
import java.util.Scanner;
class TowerOfHanoi {
public static void shift(int n, String startPole, String intermediatePole, String endPole) {
// if n becomes zero the program returns thus ending the loop.
if (n == 0) {
return;
}
// Shift function is called in recursion for swapping the n-1 disc from the startPole to the intermediatePole
shift(n - 1, startPole, endPole, intermediatePole);
System.out.println("%nMove \"" + n + "\" from " + startPole + " --> " + endPole); // Result Printing
// Shift function is called in recursion for swapping the n-1 disc from the intermediatePole to the endPole
shift(n - 1, intermediatePole, startPole, endPole);
}
public static void main(String[] args) {
System.out.print("Enter number of discs on Pole 1: ");
Scanner scanner = new Scanner(System.in);
int numberOfDiscs = scanner.nextInt(); //input of number of discs on pole 1
shift(numberOfDiscs, "Pole1", "Pole2", "Pole3"); //Shift function called
scanner.close();
}
}