Java Program to Print Less Than Symbol Star Pattern

Program to Print Less Than Symbol Star Pattern

In this article we are going to see how to print the less than symbol star pattern

Example-1

When size value=7

        *
     *
  *
*
   *
      *
         *

Example-2

When size value=5

    *
  *
*
  *
    *

Now, let’s see the actual program to print it.

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Approach:

Enter size of the pattern and store it in an integer variable size.
Take one outer for loop to iterate the rows.
Take one inner for loops, to iterate the columns.
After each iteration print a newline.

JAVA Code:

Static Star Character
User Input Character

Method-1: Static Star Character

import java.util.Scanner;
class Main
{
public static void main(String[] args)
{
    int size, r, c;
    //Taking size as input from user
    System.out.print("Size : ");
    Scanner scan = new Scanner(System.in);
    size = scan.nextInt();

    //Taking middle of the pattern
    int mid = size / 2 + 1;
    //Outer Loop
    for (r = 1; r <= size; r++)
    {
        //Inner loop
        for (c = 1; c <= size; c++)
        {
            if (c == mid)
                System.out.print("*");
            else
                System.out.print("  ");
        }
        //Prints a newline
        System.out.println();
        //Adjusting the mid value
        if (r <= size / 2)
            mid--;
        else
            mid++;
    }
  }
}

Output:

Size : 5

    *
  *
*
  * 
    *

Method-2: User Input Character

import java.util.Scanner;
class Main
{
  public static void main (String[]args)
  {
    int size, r, c;

    Scanner scan = new Scanner (System.in);

      //Taking size as input from user
      System.out.print ("Size : ");
      size = scan.nextInt ();
      //Taking any random character as input from user
      System.out.print("Character : ");
      char less = scan.next().charAt(0);

    //Taking middle of the pattern
    int mid = size / 2 + 1;
    //Outer Loop
    for (r = 1; r <= size; r++)
      {
    //Inner loop
    for (c = 1; c <= size; c++)
      {
        if (c == mid)
          System.out.print (less);
        else
          System.out.print ("  ");
      }
    //Prints a newline
    System.out.println ();
    //Adjusting the mid value
    if (r <= size / 2)
      mid--;
    else
      mid++;
      }
  }
}

Output:

Size : 5
Character : <

      <
   <
<
   <
      <

C Code:

#include <stdio.h>

int main()
{
    int size, r, c;
    //Taking size as input from user
    printf("Size : ");
    scanf("%d", &size);

    //Taking middle of the pattern
    int mid = size / 2 + 1;
    //Outer Loop
    for (r = 1; r <= size; r++)
    {
        //Inner loop
        for (c = 1; c <= size; c++)
        {
            if (c == mid)
                printf("*");
            else
                printf("  ");
        }
        //Prints a newline
        printf("\n");
        //Adjusting the mid value
        if (r <= size / 2)
            mid--;
        else
            mid++;
    }
    return 0;
}

Output:

Size : 5

    *
  *
*
  *
     *

C++ Code:

#include <iostream>
using namespace std;
int main(int argc, char const *argv[])
{
    int size, r, c;
    //Taking size as input from user
    cout << "Size : ";
    cin >> size;

    //Taking middle of the pattern
    int mid = size / 2 + 1;
    //Outer Loop
    for (r = 1; r <= size; r++)
    {
        //Inner loop
        for (c = 1; c <= mid; c++)
        {
            if (c == mid)
                cout << "*";
            else
                cout << " ";
        }
        //Prints a newline
        cout << endl;
        //Adjusting the mid value5
        if (r <= size / 2)
            mid--;
        else
            mid++;
    }
    return 0;
}

Output:

Size : 5

    *
  *
*
  *
    *

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