M N O and P character pattern programs in Java

1.  Character Pattern M in Java

This program demonstrates the process of displaying the pattern M using Java programming language.

import java.util.*;
class M
{
  public static void main(String[] args)
  {
    Scanner scan =new Scanner(System.in);
    System.out.println("enter the value of n");
    int n=scan.nextInt();
    for(int i=0;i<n;i++)
    {
      for(int j=0;j<n;j++)
      {
        if(j==0&&i>=0||i==j&&i<n/2||i+j==n-1&&i<n/2||j==n-1&&i>=0)
        {
          System.out.print("*");
        }
        else
        {
          System.out.print(" ");
        }
      }
      System.out.println();
    }
  }
}

Output of pattern M in java

Enter the value of n
8
* *
** **
* * * *
* ** *
* *
* *
* *
* *

2.  Character Pattern N in Java

This program demonstrates the process of printing the pattern N using Java programming language.

import java.util.*;
class N
{
  public static void main(String[] args)
  {
    Scanner scan =new Scanner(System.in);
    System.out.println("enter the value of n");
    int n=scan.nextInt();
    for(int i=0;i<n;i++)
    {
      for(int j=0;j<n;j++)
      {
        if(j==0&&i>=0||i==j||j==n-1&&i>=0)
        {
          System.out.print("*");
        }
        else
        {
          System.out.print(" ");
        }
      }
      System.out.println();
    }
  }
}

Output of pattern N in java

Enter the value of n
8
* *
** *
* * *
* * *
* * *
* * *
* **
* *

3.  Character Pattern O in Java

This program demonstrates the how to display the pattern O using Java programming language.

import java.util.*;
class O
{
  public static void main(String[] args)
  {
    Scanner scan =new Scanner(System.in);
    System.out.println("enter the value of n");
    int n=scan.nextInt();
    for(int i=0;i<n;i++)
    {
      for(int j=0;j<n;j++)
      {
        if(j==0&&i>=0||i==0&&j>=0||i==n-1&&j>=0||j==n-1&&i>=0)
        {
          System.out.print("*");
        }
        else
        {
          System.out.print(" ");
        }
      }
      System.out.println();
    }
  }
}

Output of pattern O in java

Enter the value of n
8
********
* *
* *
* *
* *
* *
* *
********

4.  Character Pattern P in Java

This program demonstrates the how to print the pattern P using Java programming language.

import java.util.*;
class P
{
  public static void main(String[] args)
  {
    Scanner scan =new Scanner(System.in);
    System.out.println("enter the value of n");
    int n=scan.nextInt();
    for(int i=0;i<n;i++)
    {
      for(int j=0;j<n;j++)
      {
        if(j==0&&i>=0||i==n/2&&j>=0||i==0&&j>=0||j==n-1&&i<=n/2)
        {
          System.out.print("*");
        }
        else
        {
          System.out.print(" ");
        }
      }
      System.out.println();
    }
  }
}

Output of pattern P in java

Enter the value of n
8
********
* *
* *
* *
********
*
*
*