I am doing an assignment for school. It is a towers of hanoi assignment. (I didn't add the larger-disk-over-smaller-disk code yet). When I set tower3 as 4, 3, 2, 1, it says I won, but when I do it while playing the game, nothing happens. Please help! This is due Monday 8:30pm EST.
import java.util.Scanner;
/**
* Simulates a tower that can hold disks.
* @author S. Camilleri
* @author <Hasan Zafar>
*/
public class Challenge {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
// This array holds the disks. A 0 represents no disk.
int[] tower = {4,3,2,1};
int[] tower2 = {0,0,0,0};
int[] tower3 = {0,0,0,0};
// This index represents the first available empty spot for a disk.
int index = 0;
int towerCounter = 0;
int length = tower.length;
int length2 = tower2.length;
int length3 = tower3.length;
int diskChoice = 1;
int i;
int held = 0;
int placeChoice;
boolean playing = true;
while (playing)
{
//Check if Won
if (tower3[0] == 4 && tower3[1] == 3 && tower3[2] == 2 && tower[3] == 1) {
System.out.println("Congratulations! You win!");
playing = false;
break;
}
/********************
* Display the towers
********************/
System.out.println();
//Tower1
System.out.print("{ ");
for (int x=0; x<length; x++)
{
System.out.print(tower[x]);
}
System.out.println();
//Tower2
System.out.print("{ ");
towerCounter = 0;
for (int x=0; x<length2; x++)
{
System.out.print(tower2[x]);
}
System.out.println();
//Tower3
System.out.print("{ ");
towerCounter = 0;
for (int x=0; x<length3; x++)
{
System.out.print(tower3[x]);
}
/********************
* Select the highest disk from the tower
********************/
System.out.println();
System.out.println("Pick a tower (The disk highest on that tower will be chosen)");
diskChoice = input.nextInt();
// If user uses the first tower
if (diskChoice == 1) {
i = 3;
while (tower[i] == 0) {
i--;
}
held = tower[i];
tower[i] = 0;
} else if (diskChoice == 2) { // If user uses the second tower
i = 3;
while (tower2[i] == 0) {
i--;
}
held = tower2[i];
tower2[i] = 0;
} else if (diskChoice == 3) { // If user uses the third tower
i = 3;
while (tower3[i] == 0) {
i--;
}
held = tower3[i];
tower3[i] = 0;
}
/********************
* Place the disk
********************/
System.out.println("Where would you like to place" + " " + held + "?");
placeChoice = input.nextInt();
if (placeChoice == 1) {
i = 3;
if (tower[3] == 0){
while (tower[i] == 0) {
i--;
if (i == 0) {
break;
}
}
}
if (tower[i] == 0) {
tower[i] = held;
} else if (tower[i] != 0) {
tower[i+1] = held;
}
} else if (placeChoice == 2) {
i = 3;
if (tower2[3] == 0){
while (tower2[i] == 0) {
i--;
if (i == 0) {
break;
}
}
}
if (tower2[i] == 0) {
tower2[i] = held;
} else if (tower2[i] != 0) {
tower2[i+1] = held;
}
} else if (placeChoice == 3) {
i = 3;
if (tower3[3] == 0){
while (tower3[i] == 0) {
i--;
if (i == 0) {
break;
}
}
}
if (tower3[i] == 0) {
tower3[i] = held;
} else if (tower3[i] != 0) {
tower3[i+1] = held;
}
}
}
}
}
If I set tower3 as 4321 manually, it says I won. If I set tower3 as 4321 in-game, it just keeps playing.
I figured it out. I forgot to write the 3 at the of win statement.