Program to Print Reverse K Shape Character Pattern
In the previous article, we have discussed Java Program to Print K Shape with Decreasing Character Pattern
In this program we are going to see how to print the Reverse K shape character pattern.
- Java Code to Print Reverse K Shape Character Pattern
- C Code to Print Reverse K Shape Character Pattern
- C++ Code to Print Reverse K Shape Character Pattern
Example-1
When row value=6
ABC
BC
C
C
BC
ABC
Example-2:
When row value=10
ABCDE
BCDE
CDE
DE
E
E
DE
CDE
BCDE
ABCDE
Now, let’s see the actual program to print it.
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Approach:
- Enter total row and store it in an integer variable
row_count. - Take two outer for loops, one for the upper half and the other for the bottom.
- Inside both the loops, take two inner for loops to print the space and the characters.
- After each iteration print a new line.
Java Code to Print Reverse K Shape Character Pattern
import java.util.Scanner;
class Main
{
public static void main(String[] args)
{
Scanner scan = new Scanner(System.in);
//Taking number of rows as input from the user and
//then dividing it by two to get the size of the halves
System.out.print("Rows(Enter even number) : ");
int row_count = scan.nextInt();
row_count/=2;
int row, col, alphaAscii;
//row, col are iterator and
//the alphaAscii is the
//ASCII value holder initialized to hold 'A'
//loop to print upper part of the pattern
for (row = 0; row <= row_count - 1; row++)
{
//Resetting the value to 'A' after every iteration
alphaAscii = 65;
for (col = 0; col < row; col++)
{
//Inner loop to print space
System.out.print(" ");
}
for (col = row; col <= row_count-1; col++)
{
System.out.print((char)(alphaAscii+col));
}
System.out.println();
}
//loop to print lower part of the pattern
for (row = row_count - 1; row >= 0; row--)
{
//Resetting the value to 'A' after every iteration
alphaAscii = 65;
for (col = 0; col < row; col++)
{
//Inner loop to print space
System.out.print(" ");
}
//Inner loop to print character
for (col = row; col <= row_count-1; col++)
{
System.out.print((char)(alphaAscii+col));
}
System.out.println();
}
}
}
Output:
Rows(Enter even number) : 10
ABCDE
BCDE
CDE
DE
E
E
DE
CDE
BCDE
ABCDE
C Code to Print Reverse K Shape Character Pattern
#include <stdio.h>
int main()
{
printf("Rows(Enter odd number) : ");
int row_count;
scanf("%d", &row_count);
row_count /= 2;
//Taking number of rows as input from the user and
//then dividing it by two to get the size of the halves
int row, col, alphaAscii;
//row, col are iterator and the alphaAscii is the ASCII value holder
for (row = 0; row <= row_count - 1; row++)
{
//loop to print upper part of the pattern
alphaAscii = 65;
//Resetting the value to 'A' after every iteration
for (col = 0; col < row; col++)
{
//Inner loop to print space
printf(" ");
}
for (col = row; col <= row_count - 1; col++)
{
//Inner loop to print character
printf("%c", (char)(alphaAscii + col));
}
printf("\n");
}
for (row = row_count - 1; row >= 0; row--)
{
//loop to print lower part of the pattern
alphaAscii = 65;
//Resetting the value to 'A' after every iteration
for (col = 0; col < row; col++)
{
//Inner loop to print space
printf(" ");
}
for (col = row; col <= row_count - 1; col++)
{
//Inner loop to print character
printf("%c", (char)(alphaAscii + col));
}
printf("\n");
}
return 0;
}
Output:
Rows(Enter even number) : 10
ABCDE
BCDE
CDE
DE
E
E
DE
CDE
BCDE
ABCDE
C++ Code to Print Reverse K Shape Character Pattern
#include <iostream>
using namespace std;
int main(int argc, char const *argv[])
{
cout << "Rows(Enter even number) : ";
int row_count;
cin >> row_count;
row_count /= 2;
//Taking number of rows as input from the user and
//then dividing it by two to get the size of the halves
int row, col, alphaAscii = 65;
//row, col are iterator and the alphaAscii is the ASCII value holder
for (row = 0; row <= row_count - 1; row++)
{
//loop to print upper part of the pattern
alphaAscii = 65;
//Resetting the value to 'A' after every iteration
for (col = 0; col < row; col++)
{
//Inner loop to print space
cout << " ";
}
for (col = row; col <= row_count - 1; col++)
{
//Inner loop to print character
cout << (char)(alphaAscii + col);
}
cout << endl;
}
for (row = row_count - 1; row >= 0; row--)
{
//loop to print lower part of the pattern
alphaAscii = 65;
//Resetting the value to 'A' after every iteration
for (col = 0; col < row; col++)
{
//Inner loop to print space
cout << " ";
}
for (col = row; col <= row_count - 1; col++)
{
//Inner loop to print character
cout << (char)(alphaAscii + col);
}
cout << endl;
}
return 0;
}
Output:
Rows(Enter even number) : 10
ABCDE
BCDE
CDE
DE
E
E
DE
CDE
BCDE
ABCDE
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