Please Explain whats wrong with this code

#1

import java.util.*;
public class Main {
public static void main(String args[]) {
// Your Code Here
Scanner sc=new Scanner(System.in);
int n=sc.nextInt();
tower(n,“T1”,“T2”,“T3”);
int steps=(int)Math.pow(2,n)-1;
System.out.println(steps);
}
public static void tower(int n,String from,String to,String ex){
if(n==1){
System.out.println("Move disk 1th from “+from+” to rod " + to);
return;
}

    tower(n-1,from,ex,to);
    System.out.println("Move disk "+n+"th from "+from+" to rod " + to);
    tower(n-1,ex,to,from);

}

}

#2

@piyushabhiranjan30,
Error in the print statements.

Corrected:

public static void tower(int n,String from,String to,String ex){
if(n==1){
System.out.println("Move 1th disc from "+from+" to " + to);
return;
}

    tower(n-1,from,ex,to);
    System.out.println("Move "+n+"th" + " disc"+" from "+from+" to " + to);
    tower(n-1,ex,to,from);

}

Please match your sample test case output with the given output to avoid mistakes like these.