C++ code to Generate Rhombus patterns using do-while loop
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C++ code to Generate Rhombus patterns using do-while loop
C++ code to Generate Rhombus patterns using do-while loop
In this article, we will discuss the concept of C++ code to Generate Rhombus patterns using do-while loop
In this post, we are going to learn how to use a do-while loop to write a program for print rhombus and hollow rhombus patterns using given symbol in C++ programming language.
Display Rhombus patterns Using do-while loop
Code to print Rhombus pattern using do-while loop

Program 1
This program allows the user to enter the number of rows and symbols then it will display the rhombus pattern using do-while loop in C++ programming language
#include <iostream>
#include <conio.h>
using namespace std;
//Program to print rhombus pattern using do-while loop in cpp
int main() {
int i,j,rows;//int variable declaration
char ch;//char variable declaration
cout<<"Enter the number of rows\n";
//ask input from the user for rows
cin>>rows;
//store the given input in the rows variable
cout<<"Enter the Symbol for pattern\n";
//ask input from the user for character
cin>>ch;
//store the given input in the ch variable
cout<<"\n";//move to next line
i=1;
do{//outer for loop
j=1;
do{//inner for loop
cout<<" ";//print space
j++;
}while(j<=rows-i);
j=1;
do{//inner for loop
cout<<ch;//print character after space
j++;
}while(j<=rows);
cout<<"\n";//move to next line
i++;
}while(i<rows);
getch();
return 0;
}
When the above code is executed, it produces the following result
Code to print Rhombus pattern using do-while loop
Program 2
This program allows the user to enter the number of rows and symbols then it will display the Hollow rhombus pattern using do-while loop in C++ programming language
#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
int i,j,rows;
char ch;
cout<<"Enter the number of rows\n";
cin>>rows;
cout<<"Enter the Symbol for pattern\n";
cin>>ch;
cout<<"\n";
i=1;
do{//outer for loop
j=1;
do{
cout<<" ";//print space
}while(j++<=rows-i);//inner for loop
if(i==1 || i==rows){
j=1;
do{
cout<<ch;//print symbol after space
}while(++j<=rows);
}
else{
j=1;
do{
if(j==1 || j==rows)
cout<<ch;//print char
else
cout<<" ";//print space
}while(++j<=rows);
}
cout<<"\n";//move to next line
i++;
}while(i<=rows);
getch();
return 0;
}
When the above code is executed, it produces the following result
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