Write a Java program to print left arrow alphabets pattern using for loop.
package Alphabets;
import java.util.Scanner;
public class LeftArrowAlps1 {
private static Scanner sc;
public static void main(String[] args) {
sc = new Scanner(System.in);
System.out.print("Enter Left Arrow Pattern of Alphabets Rows = ");
int rows = sc.nextInt();
System.out.println("Printing Left Arrow Alphabets Pattern");
int i, j, alphabet = 65;
for (i = rows - 1; i >= 0; i-- )
{
for (j = i; j >= 0; j--)
{
System.out.print((char)(alphabet + j) + " ");
}
System.out.println();
}
for (i = 0; i < rows; i++ )
{
for (j = i; j >= 0; j-- )
{
System.out.print((char)(alphabet + j) + " ");
}
System.out.println();
}
}
}
This Java program prints the left arrow of alphabets pattern using while loop.
package Alphabets;
import java.util.Scanner;
public class LeftArrowAlps2 {
private static Scanner sc;
public static void main(String[] args) {
sc = new Scanner(System.in);
System.out.print("Enter Left Arrow Pattern of Alphabets Rows = ");
int rows = sc.nextInt();
System.out.println("Printing Left Arrow Alphabets Pattern\n");
int i, j, alphabet = 65;
i = rows - 1;
while( i >= 0)
{
j = i;
while(j >= 0)
{
System.out.print((char)(alphabet + j) + " ");
j--;
}
System.out.println();
i--;
}
i = 0;
while(i < rows )
{
j = i;
while(j >= 0 )
{
System.out.print((char)(alphabet + j) + " ");
j--;
}
System.out.println();
i++;
}
}
}
Enter Left Arrow Pattern of Alphabets Rows = 14
Printing Left Arrow Alphabets Pattern
N M L K J I H G F E D C B A
M L K J I H G F E D C B A
L K J I H G F E D C B A
K J I H G F E D C B A
J I H G F E D C B A
I H G F E D C B A
H G F E D C B A
G F E D C B A
F E D C B A
E D C B A
D C B A
C B A
B A
A
A
B A
C B A
D C B A
E D C B A
F E D C B A
G F E D C B A
H G F E D C B A
I H G F E D C B A
J I H G F E D C B A
K J I H G F E D C B A
L K J I H G F E D C B A
M L K J I H G F E D C B A
N M L K J I H G F E D C B A
This Java example uses the do while loop to display the left arrow pattern of alphabets.
package Alphabets;
import java.util.Scanner;
public class LeftArrowAlps3 {
private static Scanner sc;
public static void main(String[] args) {
sc = new Scanner(System.in);
System.out.print("Enter Left Arrow Pattern of Alphabets Rows = ");
int rows = sc.nextInt();
System.out.println("Printing Left Arrow Alphabets Pattern\n");
int i, j, alphabet = 65;
i = rows - 1;
do
{
j = i;
do
{
System.out.print((char)(alphabet + j) + " ");
} while(--j >= 0);
System.out.println();
} while(--i >= 0);
i = 0;
do
{
j = i;
do
{
System.out.print((char)(alphabet + j) + " ");
} while(--j >= 0 );
System.out.println();
} while(++i < rows );
}
}
Enter Left Arrow Pattern of Alphabets Rows = 16
Printing Left Arrow Alphabets Pattern
P O N M L K J I H G F E D C B A
O N M L K J I H G F E D C B A
N M L K J I H G F E D C B A
M L K J I H G F E D C B A
L K J I H G F E D C B A
K J I H G F E D C B A
J I H G F E D C B A
I H G F E D C B A
H G F E D C B A
G F E D C B A
F E D C B A
E D C B A
D C B A
C B A
B A
A
A
B A
C B A
D C B A
E D C B A
F E D C B A
G F E D C B A
H G F E D C B A
I H G F E D C B A
J I H G F E D C B A
K J I H G F E D C B A
L K J I H G F E D C B A
M L K J I H G F E D C B A
N M L K J I H G F E D C B A
O N M L K J I H G F E D C B A
P O N M L K J I H G F E D C B A