C code to print Double pyramid star pattern

In this tutorial, we will discuss a simple concept of te C code to print Double pyramid star pattern

In this post, we will learn how to create double (integrated) pyramid star pattern in C language.

We can use for loop, while loop or do while loop to display different integrated star patterns.

Here, we will use for loop to print different Double(integrated) pyramid star patterns

Program 1

Integrated pyramid star pattern 1

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int rows,i,j;
    printf("Enter the number of rows: ");
    scanf("%d",&rows);
    for(i=1; i<=rows; i++){    //print upper part
    for(j=i; j<=rows; j++){
      printf("*");//print star
}
printf("\n");
}

for(i=rows-1; i>=1; i--){  //print lower part
    for(j=i; j<=rows; j++){
      printf("*");//print star
}
printf("\n");
        }
        getch();
    return 0;
}

When the above code is executed, it produces the following result

Enter the number of rows: 6
******
*****
****
***
**
*
**
***
****
*****
******

Program 2

Integrated pyramid star pattern 2

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int rows,i,j,k;
    printf("Enter the number of rows\n");
    scanf("%d",&rows);
    for(i=1; i<=rows; i++){    //print upper part
    for(j=1; j<=i; j++){
      printf(" ");
}
for(k=i; k<=rows; k++){
      printf("*");//print star to upper part
      printf(" ");
}
printf("\n");//move to next line
}

for(i=rows-1; i>=1; i--){  //print lower part
    for(j=1; j<=i; j++){
      printf(" ");
}
for(k=i; k<=rows; k++){
      printf("*");//print star to lower part
      printf(" ");
}
printf("\n");//move to next line

}
getch();
return 0;
}

When the above code is executed, it produces the following result

Enter the number of rows: 6
*   *   *   *   *   *
  *   *   *   *   *
    *   *   *   *
      *   *   *
        *   *
          *
        *   *
      *   *   *
    *   *   *   *
  *   *   *   *   *
*   *   *   *   *   *

Program 3

Integrated pyramid star pattern 3

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int rows,i,j;
    printf("Enter the number of rows: ");
    scanf("%d",&rows);
    for(i=1; i<=rows; i++){    //print upper part
    for(j=1; j<i; j++){
      printf(" ");//print space
}
for(j=i; j<=rows; j++){
      printf("*");//print star to upper part
}
printf("\n");//move to next line
}

for(i=rows-1; i>=1; i--){
  for(j=1; j<i; j++){
      printf(" ");//print space
}

for(j=i; j<=rows; j++){  //print lower part
      printf("*");//print star to lower part
}
printf("\n");
        }
    return 0;
}

When the above code is executed, it produces the following result

Enter the number ofrows: 6
******
  *****
    ****
      ***
        **
          *
        **
      ***
    ****
  *****
******

Program 4

Integrated pyramid star pattern 4

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int rows,i,j,k;
    printf("Enter the number of rows: ");
    scanf("%d",&rows);
    for(i=1; i<=rows; i++){    //print upper part
    for(j=1; j<=rows-i; j++){
      printf(" ");
}
for(k=1; k<=i; k++){
      printf("*");//print star to upper part
      printf(" ");
}
printf("\n");
}

for(i=1; i<=rows-1; i++){  //print lower part
    for(j=1; j<=i; j++){
      printf(" ");
}
for(k=1; k<=rows-i; k++){
      printf("*");//print star to lower part
      printf(" ");
}
printf("\n");
        }
        getch();
    return 0;
}

When the above code is executed, it produces the following result

Enter the number of rows: 6
         *
       *  *
     *  *  *
   *  *  *  *
  *  *  *  * *
*  *  *  *  * *
  *  *  *  *  *
    *  *  *  *
      *  *  * 
        *  *
          *

Java code to Double pyramid star pattern

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