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C++ program to print a hollow square shape using for loops, if else and asterisks

11 comments
Brief Explanation of Code:
  • Program takes input form user one is height and other is width of square and print respective size of hollow square on console
  • There is one main for loop in a program which runs equal to height of square. Other 3 loops runs for width in side main loop
  • There is one if , else if and else statement in the program each contain a for
C++ Code
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  1. #include<iostream>
  2. using namespace std;
  3. main()
  4. {
  5.     int squareHeight, squareWidth;
  6.     cout<< "Enter Height:  ";
  7.     cin>>  squareHeight;
  8.     cout<< "Enter Widht:   ";
  9.     cin>>  squareWidth;
  10.   for(int width=1; width<=squareHeight; width++)
  11.     {
  12.    if(width <= 1)
  13.    for(int width=1; width<=squareWidth; width++)
  14.             {
  15.                 cout<< "*";
  16.             }
  17.         else if(width<squareHeight)
  18.         {
  19.             cout<< endl;
  20. for(int width2=1; width2<=squareWidth; width2++)
  21.       {
  22.       if(width2==1 || width2==squareWidth)
  23.                     cout<< "*";
  24.                 else
  25.                     cout<< " ";
  26.             } //end of for  variable width2
  27.         }// end of else if
  28.         else
  29.         {
  30.             cout<< endl;
  31. for(int width3=1; width3<=squareWidth; width3++)
  32.    {
  33.                 cout<<"*";
  34.             }//end of for having variable width3
  35.         }// end of else
  36.     }// end of first for loop
  37. }// end of main function
 Image View of Code: (click on images for large view)
square shape in c++ using for loop c++ code
square shape c++ code
square shape in c++ using for loop c++ code


 Sample Outputs:(click on images to view large)
sample output square shape in c++ using for loop c++ code
sample output square shape in c++ using for loop c++ code


With Different Input

sample output square shape in c++ using for loop c++ code

For more shape Programs Visit Here
C++ Shape Programs

11 comments:

  1. too big.. check this out
    #include
    #include
    int main()
    {
    int h,n,i,j;
    printf("Input the nos. of rows and columns greater than 4:\n");
    scanf("%d%d",&n,&h);
    for(i=1;i<=h;i++)
    {
    for(j=1;j<=n;j++)
    {
    if(j>1 && j1 && i<h)
    printf(" ");
    else
    printf("*");
    }
    printf("\n");

    }
    getch();
    return 0;
    }

    ReplyDelete
    Replies
    1. i m not able to understand what is written inside if statement. plz write it correctly

      Delete
  2. No doubt its easy to get and well explained ......:)
    add more c++ projects and programs with the explanation and logic :)

    ReplyDelete
  3. Nice programs.I have learned a lot big up

    ReplyDelete
  4. #include
    int main()
    {
    int h,w,r,c;
    printf("Give height : ");
    scanf("%d",&h);
    printf("Give width : ") ;
    scanf("%d",&w) ;
    for(r=0;r<h;r++)
    {
    for(c=0;c<w;c++)
    {
    if(r==0||r==(h-1)||c==0||c==(w-1))
    {
    printf("* ");
    }
    else
    printf(" ");
    }
    printf("\n") ;
    }
    return 0;
    }

    ReplyDelete
    Replies
    1. This is the right code... The upper one given doesn't work

      Delete
  5. But if we want to write in this asteriks square what is the process plzzz any one can tell

    ReplyDelete
  6. If we want to write in this asteriks square then what is the process

    ReplyDelete