2 Different Alphabet Patterns in Java (half hourglass)2 min read

In this tutorial, we will go through two different alphabet pattern programs in java programming. Before that, you may go through the following topic in java.

2 different Alphabet pattern program in Java

Both of the programs below take the number of rows as the user input and using for loop it prints the desired output.

Pattern 1:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
import java.util.Scanner;
 
public class Main
{
  public static void main(String args[])
  {
    int rows, i, j;
    Scanner sc = new Scanner(System.in);
 
    System.out.print("Enter the no. of rows: ");
    rows = sc.nextInt();
 
    //upper part
    for (i = rows; i >= 0; i--)
    {
      int character = 65;
      for (j = 0; j <= i; j++)
        System.out.print((char)(character + j) + " ");
 
      System.out.println();
    }
    //lower part
    for (i = 0; i <= rows; i++)
    {
      int character = 65;
      for (j = 0; j <= i; j++)
        System.out.print((char)(character + j) + " ");
 
      System.out.println();
    }
  }
}

Output:

Enter the no. of rows: 5
A B C D E F
A B C D E
A B C D
A B C
A B
A
A
A B
A B C
A B C D
A B C D E
A B C D E F

Pattern 2:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
import java.util.Scanner;
 
public class Main
{
  public static void main(String args[])
  {
    int rows, i, j;
    Scanner sc = new Scanner(System.in);
 
    System.out.print("Enter the no. of rows: ");
    rows = sc.nextInt();
 
    //upper part
    for (i = rows; i >= 0; i--)
    {
      int character = 65;
      for (j = i; j >= 0; j--)
        System.out.print((char)(character + j) + " ");
 
      System.out.println();
    }
    //lower part
    for (i = 0; i <= rows; i++)
    {
      int character = 65;
      for (j = i; j >= 0; j--)
        System.out.print((char)(character + j) + " ");
 
      System.out.println();
    }
  }
}

Output:

Enter the no. of rows: 5
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

MORE

Java Program to find the sum of the Largest Forward Diagonal

in this tutorial, we will write a java program to find the sum of the Largest Forward Diagonal in an Arraylist (matrix). Java Program to …

Read More

C Program to search an element in an array using Pointers

A separate function( search_function()) will be created where the array pointer will be declared and the searched element along with the size of an array …

Read More

C Program to find the sum of the digits of a number using recursion function

This C program calculates the sum of digits of a given number using recursion. Here’s a concise explanation: Function Definition: sumDigits(int n) This function calculates …

Read More

C program to find factorial of a number using Ternary operator with Recursion

Recursion refers to the function calling itself directly or in a cycle. Before we begin, you should have the knowledge of following in C Programming: …

Read More

C Program to Add Two Numbers Using Call by Reference

The program takes the two numbers from the user and passes the reference to the function where the sum is calculated. You may go through …

Read More

Find the output ab, cd, ef, g for the input a,b,c,d,e,f,g in Javascript and Python

In this tutorial, we will write a program to find a pairs of elements from an array such that for the input [a,b,c,d,e,f,g] we will …

Read More