Question

IN JAVA Create a program that uses a nested for loop to display a rectangle of #'s with a given number of rows and columns,. This should only display the # when the column is an odd number (see examples below).

Get the number of rows and columns from the user, and display the result.

Examples:

If the user provided rows=4, and columns=7, the program should display a pattern as follows:

# # # #

# # #

# # # #

# # #  

If the user provide rows=2, and columns=5, the program should display a pattern as follows:

# # #

# #

etc.

Upload

Answer 1

Hi,

Below is your program..itwas lil tricky but i did it finally

//IN JAVA Create a program that uses a nested for loop to display a rectangle of #'s with a given number of rows and columns,.
//This should only display the # when the column is an odd number (see examples below).
import java.util.Scanner;

public class RectanglePattern {
   private static Scanner sc;
   public static void main(String[] args)
   {
       int rows, columns, i, j;
       sc = new Scanner(System.in);
      
       System.out.print(" Please Enter Number of Rows : ");
       rows = sc.nextInt();  
      
       System.out.print(" Please Enter Number of Columns : ");
       columns = sc.nextInt();      
          
       for(i = 1; i <= rows; i++)
       {
           for(j = 1; j <= columns; j++)
           {
               if(j%2!=0){
               System.out.print("# "); }
           }
           System.out.print("\n");
           if(i%2!=0){
columns = columns-1;}
else{
columns = columns+1;}
       }  
   }
}