In this tutorial, we will discuss the concept of Cpp program to print hollow diamond star pattern
In this program, we are going to learn how to displayed hollow diamond star pattern using for loop in C++ programming language
Here, we display a hollow diamond star pattern program with coding using nested for loop and also we get input from the user using cin function in C++ language
the user can provide numbers as they wish and get the hollow diamond star pattern according to their input.
Program 1
#include <iostream> #include <conio.h> using namespace std; int main() { int i,j,rows; cout<<"Enter the number of rows: \n"; cin>>rows; //print upper triangle for(i=1; i<=rows; i++){ for(j=rows; j>i; j--){ cout<<" ";//print space } cout<<"*";//print star for(j=1; j<(i-1)*2; j++){ cout<<" "; } if(i==1){ cout<<"\n"; } else{ cout<<"*\n"; } } //print lower triangle for(i=rows-1; i>=1; i--){ for(j=rows; j>i; j--){ cout<<" ";//print space } cout<<"*";//print star for(j=1; j<(i-1)*2; j++){ cout<<" "; } if(i==1){ cout<<"\n"; } else{ cout<<"*\n"; } } getch(); return 0; }
When the above code executed, it produces the following results
Enter the number of rows: 6 * * * * * * * * * * * * * * * * * * * *
In this program, we are going to learn how to displayed hollow diamond star pattern using while loop in C++ programming language
here, we display a hollow diamond star pattern program with coding using nested while loop and also we get input from the user using cin function in C++ language
the user can provide numbers as they wish and get the hollow diamond star pattern according to their input
Program 2
#include <iostream> #include <conio.h> using namespace std; int main() { int i,j, rows; cout<<"Enter the number of rows\n"; cin>>rows;; i=1; while(i<=rows){//print upper triangle j=rows; while( j>i){ cout<<" ";//print space j--; } cout<<"*";//print star j=1; while(j<(i-1)*2){ cout<<" "; j++; } if(i==1){ cout<<"\n"; } else{ cout<<"*\n"; } i++; } //print lower triangle i=rows-1; while(i>=1){ j=rows; while(j>i){ cout<<" ";//print space j--; } cout<<"*";//print star j=1; while(j<(i-1)*2){ cout<<" "; j++; } if(i==1){ cout<<"\n"; } else{ cout<<"*\n"; } i--; } getch(); return 0; }
When the above code executed, it produces the following results
Enter the number of rows: 6 * * * * * * * * * * * * * * * * * * * *
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