fish-pattern

// import required classes  
import java.util.Scanner;  
  
// create FishPatternExample class to print Fish Pattern  
public class FishPatternExample {  
  
    // create drawFistPattern() method that will print Fish over n rows  
    public static void drawFistPattern(int n) {  
          
        // declare and initialize string variables that help to print Fish pattern  
        String sp1 = "";  
        String st1 = "*", st2 = "";  
          
        // for generating space string  
        for (int i = 0; i < n; ++i) {  
            sp1 += ' ';  
        }  
          
        // for printing upper, middle and lower part  
        for (int j = 0; j < 2 * n + 1; ++j)  
        {  
          
            // for printing upper part  
            if (j < n) {  
                System.out.print(sp1 + st1 + sp1 + sp1);  
                System.out.println(st2);  
                sp1 = sp1.substring(0, sp1.length() - 1);  
                st1 += "**";  
                st2 += "*";  
            }  
  
            // for printing middle part  
            if (j == n) {  
                System.out.print(sp1 + st1 + sp1 + sp1);  
                System.out.println(st2);  
            }  
  
            // for printing lower part  
            if (j > n) {  
                sp1 += ' ';  
                st1 = st1.substring(0, st1.length() - 1);  
                st1 = st1.substring(0, st1.length() - 1);  
                st2 = st2.substring(0, st2.length() - 1);  
                System.out.print(sp1 + st1 + sp1 + sp1);  
                System.out.println(st2);  
            }  
        }  
    }  
  
    // main() method start  
    public static void main(String args[]) {  
        int n;  
          
        // create Scanner class object  
        Scanner sc = new Scanner(System.in);  
          
        System.out.println("Enter value of N");  
        // take input from user  
        n = sc.nextInt();  
          
        // close Scanner class object  
        sc.close();  
          
        // call drawFistPattern() method for printing Fish Pattern  
        drawFistPattern(n);  
    }  
}