Pattern 180

C

#include<stdio.h>

#include<math.h>
int main()
{
  int size=3;
  int i,j,k;

  for(i=size; i>=-size; i--)
  {
    for(j=1; j<=abs(i); j++)
    {
      printf(" ");
    }

    for(k=size; k>=abs(i); k--)
    {
      printf("*");
    }
    printf("\n");
  }
  return 0;
}

C++

 #include<iostream.h>
 
 #include<math.h>
 int main()
 {
 int size=3;
 int i,j,k;
 
 for(i=size;i>=-size;i--){
 for(j=1;j<=abs(i);j++)
 {
 cout<<" ";
 }
 
 for(k=size;k>=abs(i);k--)
 {
 cout<<"*";
 }
 cout<<endl;
 }
 return 0;
 }

Java

class PatternProg
 {
     public static void main(String args[])
     {
 int size=3;
  
 for(int i=size;i>=-size;i--){
 for(int j=1;j<=Math.abs(i);j++)
 {
 System.out.print(" ");
 }
 
 for(int k=size;k>=Math.abs(i);k--)
 {
 System.out.print("*");
 }
 System.out.println();
 }
     } //end of main
 }  //end of class

C#

using System;

class PatternProg
{
  public static void Main()
  {
    int size = 3;

    for (int i = size; i >= -size; i--)
    {
      for (int j = 1; j <= Math.Abs(i); j++)
      {
        Console.Write(" ");
      }

      for (int k = size; k >= Math.Abs(i); k--)
      {
        Console.Write("*");
      }
      Console.WriteLine();
    }
    Console.ReadKey(true);
  } //end of main
} //end of class

Python

size = 3
for x in range(size, -(size + 1), -1):
    for y in range(abs(x), 0, -1):
        print(" ", end="")
    for z in range(abs(x), 4):
        print("*", end="")
    print()