Java program to print number star square pattern type 4

June 4, 2020

Print number star square pattern type 4

Take input from user i.e number of lines required (N value).Take two loops one for each line (say ‘i’) and other for each digit in a particular line (say ‘j’). i starts from 1 and j starts from 1.Take a result variable (say ‘m’) and initialize it with 1.Here ‘i’ loop is used to access each line from 1 to n-1 and ‘j’ loop is used to print values in each line. First j loop executes when i not equal to 1 and other j loop runs in remaining cases.Print ‘m’ value along with * and post increment until the j loop reaches a value less than n.Print the final value ‘m’ of each line.Repeat the ‘i’ loop until it reaches n-1.

Algorithm

Take input from user i.e number of lines required (N value).
Take two loops one for each line (say ‘i’) and other for each digit in a particular line (say ‘j’). i starts from 1 and j starts from 1.
Take a result variable (say ‘m’) and initialize it with 1.
Here ‘i’ loop is used to access each line from 1 to n-1 and ‘j’ loop is used to print values in each line. First j loop executes when i not equal to 1 and other j loop runs in remaining cases.
Print ‘m’ value along with * and post increment until the j loop reaches a value less than n.
Print the final value ‘m’ of each line.
Repeat the ‘i’ loop until it reaches n-1.

Code in Java

import java.io.*;
classPrepInsta{
   public static void main(String[] args) throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    int n, i, j, m = 1;
    System.out.print("Enter N value:");
    n = Integer.parseInt(br.readLine());
    for (i = 1; i <= n - 1; i++) {
      if (i != 2) {
        for (j = 1; j < n; j++) { 
        System.out.print((m++) + "*");
        }
        System.out.print(m++);
        System.out.println();
     }  
     else {
        m = m + n;
       for (j = 1; j < n; j++) {
       System.out.print((m++) + "*");
     }
     System.out.print(m++);
     System.out.println();
   }
}
    for (i = n + 1; i < (n + n); i++) {
      System.out.print(i + "*");
    }
    System.out.print(i);
    System.out.println(); 
  }
}
This code is contributed by Shubham Nigam (Prepinsta Placement Cell Student)