Program to Print Windows Character Pattern
In the previous article, we have discussed Java Program to Print Crown Character Pattern
In this article we are going to see how to print window character pattern.
Example-1: When number of rows : 9 Odd number of rows then only one middle element(mid row + mid column). A B C D E F G H I A E I A E I A E I A B C D E F G H I A E I A E I A E I A B C D E F G H I
Example-1: When number of rows : 14 Even number of rows then two middle element(2 mid row + 2 mid column). A B C D E F G H I J K L M N A G H N A G H N A G H N A G H N A G H N A B C D E F G H I J K L M N A B C D E F G H I J K L M N A G H N A G H N A G H N A G H N A G H N A B C D E F G H I J K L M N
Now, let’s see the actual program to print it.
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Approach to Print Windows Character Pattern:
- Enter total row and store it in an integer variable
row. - Calculate middle element.
- if
nis odd we get 1 element . - in case of
nis even we get 2 values.
- if
- Take first for loop to print the row value and character for each row .
- Take first inner for loop to print column value i.e., character according to condition
if (r == 1 || c == 1 || r == row || c == row)andif (r == a || c == a)andif (r == b || c == b)else it will print space . - Then go on printing the character according to loop.
Java Code to Print Windows Character Pattern
import java.util.*;
public class Main
{
public static void main(String args[])
{
// taking variable for loop iteration and row .
int row,r,c,a,b;
// Starting ASCII value taken 64
int asciiAlpha=64;
//creating object of Scanner Class
Scanner s = new Scanner(System.in);
// entering the number of row
System.out.print("Enter rows : ");
row = s.nextInt();
// If n is odd then we will have only one middle element
if (row % 2 != 0)
{
a = (row / 2) + 1;
b = 0;
}
// If n is even then we will have two values
else
{
a = (row / 2) + 1;
b = row / 2 ;
}
//outer for loop
// to cover all the rows
for( r = 1; r <= row; r++)
{
//inner for loop
// to iterate all the column values
for( c = 1; c <= row ; c++)
{
// If i,j equals to corner row or column then print character
if (r == 1 || c == 1 || r == row || c == row)
System.out.print((char)(c+asciiAlpha)+" ");
else
{
// If i,j equals to the middle row or column then print character
if (r == a || c == a)
System.out.print((char)(c+asciiAlpha)+" ");
else if (r == b || c == b)
System.out.print((char)(c+asciiAlpha)+" ");
else
System.out.print(" ");
}
}
System.out.println();
}
}
}
Output : Case-1: Even number of rows taken. Enter rows : 20 A B C D E F G H I J K L M N O P Q R S T A J K T A J K T A J K T A J K T A J K T A J K T A J K T A J K T A B C D E F G H I J K L M N O P Q R S T A B C D E F G H I J K L M N O P Q R S T A J K T A J K T A J K T A J K T A J K T A J K T A J K T A J K T A B C D E F G H I J K L M N O P Q R S T
Output : Case-2: Odd number of rows taken. Enter rows : 13 A B C D E F G H I J K L M A G M A G M A G M A G M A G M A B C D E F G H I J K L M A G M A G M A G M A G M A G M A B C D E F G H I J K L M
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