Section 1 practice problem 8 not able code

#1

I write this code the problem comes in the third row it will print two stars continually …am not able to get over it

package praticesec1;

import java.util.Scanner;

public class Pro8 {

public static void main(String[] args) {
	// TODO Auto-generated method stub

	Scanner sc = new Scanner(System.in);

	int n = sc.nextInt();
	int nspi= 1;
	int nspo = n-2;
	for(int row =1;row<=n;row++)
	{

// work for space
for(int csp1 =1;csp1<nspi;csp1++)
{
System.out.print(" “);
}
// work for star
System.out.print(”* “);
// work for spaces
for(int csp2 =1;csp2<=nspo;csp2++)
{
System.out.print(” “);
}
// work for star
System.out.print(”* “);
// work for spaces
for(int csp1 =1;csp1<nspi;csp1++)
{
System.out.print(” ");
}
// preparation
System.out.println();
if(row <(n+1)/2)
{
nspi++;
nspo -=2;
}else
{
nspi–;
nspo +=2;
}
}
}

}

#2

your code gives compile time error

#3

import java.util.Scanner;

public class Pro8 {

public static void main(String[] args) {
	// TODO Auto-generated method stub

	Scanner sc = new Scanner(System.in);

	int n = sc.nextInt();
	int nspi = 0;
	int nspo = n - 2;
	int nsp1 = 0;
	for (int row = 1; row <= n; row++) {

		for (int csp1 = 1; csp1 <= nspi; csp1++) {
			System.out.print("  ");
		}

// work for star
System.out.print("* “);
// work for spaces
for (int csp2 = 1; csp2 <= nspo; csp2++) {
System.out.print(” “);
}
// work for star
if (row != n / 2 + 1)
System.out.print(”* “);
// work for spaces
// for (int csp1 = 1; csp1 < nspi; csp1++) {
// System.out.print(” ");
// }

// preparation

		System.out.println();
		if (row <= (n / 2)) {
			nspi++;
			nspo -= 2;
		} else {
			nspi--;
			nspo += 2;

		}
	}
}

}