Tag: java alphabet pattern

In this tutorial, we will write a Java program to display alphabet pyramid patterns. Before that, you may go through the following topic in java.

• for loop in java

Trianglular alphabet pattern

This is a program the pattern is that the alphabet starts with A and at every increment of the row there is an increment in alphabet such as A, AB, ABC, and so on.

import java.util.Scanner;

public class Main
{
  public static void main(String args[])
  {
    int rows, i, j;
    Scanner scan = new Scanner(System.in);

    System.out.print("Enter the number of rows: ");
    rows = scan.nextInt();

    System.out.print("Output:\n");
    for (i = 1; i <= rows; i++)
    {
      for (j = 1; j <= rows - i; j++)
        System.out.print(" ");

      for (j = 1; j <= i; j++)
        System.out.print((char)(char)(j + 64) + " ");

      System.out.println();
    }
  }
}

Enter the number of rows: 7
Output:
      A
     A B
    A B C
   A B C D
  A B C D E
 A B C D E F
A B C D E F G

---

In this tutorial, we will write a Java program to display alphabet pyramid patterns. Before that, you may go through the following topic in java.

• for loop in java

Trianglular alphabet pattern

This is a program the right half and left half remain exactly the same on each row forming a triangular pyramid.

import java.util.Scanner;

public class Main
{
  public static void main(String args[])
  {
    int rows, i, j;
    Scanner scan = new Scanner(System.in);

    System.out.print("Enter the number of rows: ");
    rows = scan.nextInt();

    System.out.print("Output:\n\n");
    for (i = 1; i <= rows; i++)
    {
      for (j = 1; j <= rows - i; j++)
        System.out.print(" ");

      //left half
      for (j = i; j > 0; j--)
        System.out.print((char)(j + 64));

      //right half
      for (j = 2; j <= i; j++)
        System.out.print((char)(j + 64));

      System.out.println();
    }
  }
}

Output:

Enter the number of rows: 8
Output:
     
       A
      BAB
     CBABC
    DCBABCD 
   EDCBABCDE
  FEDCBABCDEF
 GFEDCBABCDEFG
HGFEDCBABCDEFGH

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

• for loop in java

---

Half Repeated Character Pattern in Java

import java.util.Scanner;

public class Main
{
  public static void main(String args[])
  {
    int rows, i, j, k;
    Scanner sc = new Scanner(System.in);

    System.out.print("Enter the no. of rows: ");
    rows = sc.nextInt();

    for (i = 0; i <= rows; i++)
    {
      int alphabet = 65;
      for (j = 0; j < i; j++)
        System.out.print(" ");

      for (k = i; k <= rows; k++)
        System.out.print((char)(alphabet + k));

      System.out.println();
    }
    for (i = rows; i >= 0; i--)
    {
      int alphabet = 65;
      for (j = 0; j < i; j++)
        System.out.print(" ");

      for (k = i; k <= rows; k++)
        System.out.print((char)(alphabet + k));

      System.out.println();
    }
  }
}

Output:

Enter the no. of rows: 5
ABCDEF
 BCDEF
  CDEF
   DEF
    EF
     F
     F
    EF
   DEF
  CDEF
 BCDEF
ABCDEF

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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.

• for loop 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:

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:

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

---

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.

• for loop 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.

The patterns include the sideways triangle or the pyramid with different alphabet patterns, also the half hourglass patterns containing different patterns.

Pattern 1:

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();

    for (i = 0; i <= rows; i++)
    {
      int ch = 65;
      for (j = 0; j <= i; j++)
        System.out.print((char)(ch + j) + " ");

      System.out.println();
    }
    for (i = rows; i >= 0; i--)
    {
      int ch = 65;
      for (j = 0; j <= i - 1; j++)
        System.out.print((char)(ch + j) + " ");

      System.out.println();
    }
  }
}

Output:

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

---

Pattern 2:

import java.util.Scanner;

public class Main
{
  public static void main(String args[])
  {
    int rows, i, j;
    int character = 65;
    int count = 1;
    Scanner sc = new Scanner(System.in);

    System.out.print("Enter the no. of rows: ");
    rows = sc.nextInt();

    for (i = 1; i <= rows / 2 + 1; i++)
    {
      for (j = 1; j <= i; j++)
        System.out.print((char)(character + (count *j) - 1) + " ");

      System.out.println();
      count++;
    }

    for (i = 1; i <= rows / 2; i++)
    {
      for (j = 1; j <= rows / 2 + 1 - i; j++)
        System.out.print((char)(character + (count *j) - 1) + " ");

      System.out.println();
      count++;
    }
  }
}

Output:

Enter the no. of rows: 9
A
B D
C F I
D H L P
E J O T Y
F L R X
G N U
H P
I

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

• for loop in java

Both of the programs below take the user input for the number of rows to be printed for the alphabet pattern in java for the diamond shape.

---

Alphabet diamond pattern in java

import java.util.Scanner;

public class Main
{
  public static void main(String args[])
  {
    int rows, i, j, k;
    Scanner sc = new Scanner(System.in);

    System.out.print("Enter the no. of rows: ");
    rows = sc.nextInt();

    System.out.print("Diamond Shape Pattern: \n\n");
    for (i = 0; i <= rows; i++)
    {
      int ch = 65;
      for (j = rows; j >= i; j--)
      {
        System.out.print(" ");
      }
      for (k = 0; k <= i; k++)
      {
        System.out.print((char)(ch + k) + " ");
      }
      System.out.println();
    }

    for (i = 0; i <= rows; i++)
    {
      int ch = 65;
      for (j = -1; j <= i; j++)
      {
        System.out.print(" ");
      }
      for (k = 0; k <= (rows - 1) - i; k++)
      {
        System.out.print((char)(ch + k) + " ");
      }
      System.out.println();
    }
  }
}

Output:

---

Hollow Diamond Alphabet Pattern in java

import java.util.Scanner;

public class Main
{
  public static void main(String args[])
  {
    int rows, i, j;
    int ch = 65;
    Scanner sc = new Scanner(System.in);

    System.out.print("Enter the no. of rows: ");
    rows = sc.nextInt();

    System.out.print("Diamond Shape Pattern: \n\n");

    //Upper part of diamond
    for (i = 1; i <= rows; i++)
    {
      for (j = rows; j > i; j--)
        System.out.print(" ");

      System.out.print((char) ch++);

      for (j = 1; j < (i - 1) *2; j++)
        System.out.print(" ");

      if (i == 1)
        System.out.print("\n");
      else
        System.out.print((char) ch++ + "\n");
    }

    //lower part of diamond
    ch = 65;
    for (i = rows - 1; i >= 1; i--)
    {
      for (j = rows; j > i; j--)
        System.out.print(" ");

      System.out.print((char) ch++);

      for (j = 1; j < (i - 1) *2; j++)
        System.out.print(" ");

      if (i == 1)
        System.out.print("\n");
      else
        System.out.print((char) ch++ + "\n");
    }
  }
}

Output:

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In this tutorial, we will write a program to display a right-angle triangle pattern in java using the alphabet. Before that, you may go through the following topic in java.

• for loop in java

The program below takes the user input from the user for the number of rows and display the right triangle character pattern in various character orders.

Right angled triangle pattern

import java.util.Scanner;

public class Main
{
  public static void main(String args[])
  {
    int rows, i, j;
    int ch = 64;
    Scanner sc = new Scanner(System.in);

    System.out.print("Enter the number of rows: ");
    rows = sc.nextInt();

    System.out.print("Output:\n");
    for (i = 1; i <= rows; i++)
    {
      for (j = 1; j <= i; j++)
        System.out.print((char)(i + ch)+" ");

      System.out.println();
    }
  }
}

Output:

Enter the number of rows: 6
Output:
A
B B
C C C
D D D D
E E E E E
F F F F F F

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In this tutorial, we will write a java program to display the reverse right triangle pattern using the alphabet. These are character pattern programs in java. Before that, you may go through the following topic in java.

• for loop in java

The programs below take the user input from the user for the number of rows and display the reverse right triangle character pattern in various character orders.

This program can also be called the inverted half pyramid in java or Floyd’s triangle alphabet pattern in java.

Reverse right angled triangle pattern

In this program, the decrement of the Alphabet starts from the right corner of the pattern.

import java.util.Scanner;

public class Main
{
  public static void main(String args[])
  {
    int rows, i, j;
    int ch = 64;
    Scanner sc = new Scanner(System.in);

    System.out.print("Enter the number of rows: ");
    rows = sc.nextInt();

    System.out.print("Output:\n\n");
    for (i = rows; i >= 1; i--)
    {
      for (j = 1; j <= i; j++)
      {
        System.out.print((char)(j + ch));
      }

      System.out.println();
    }
  }
}

Output:

Enter the number of rows: 6
Output:

ABCDEF
ABCDE
ABCD
ABC
AB
A

---

In this tutorial, we will write an alphabet triangular pattern in java where the characters or letters are every row have the same alphabet. Before that, you may go through the following topic in java.

• for loop in java

Example:

Rows Input: 5
Output:
       A
      B B
     C C C
    D D D D
   E E E E E

---

Alphabet Pyramid Pattern in Java

import java.util.Scanner;

public class Main
{
  public static void main(String args[])
  {
    int rows, i, j;
    Scanner scan = new Scanner(System.in);

    System.out.print("Enter the number of rows: ");
    rows = scan.nextInt();

    System.out.print("Output:\n");
    for (i = 1; i <= rows; i++)
    {
      for (j = 1; j <= rows - i; j++)
        System.out.print(" ");

      for (j = 1; j <= i; j++)
        System.out.print((char)(char)(i + 64) + " ");

      System.out.println();
    }
  }
}

Output:

Enter the number of rows: 8
Output:
       A
      B B
     C C C
    D D D D
   E E E E E
  F F F F F F
 G G G G G G G
H H H H H H H H

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In this tutorial, we will write a program to display half alphabet pyramid patterns in java. Before that, you may go through the following topic in java.

• for loop in java

Example:

Rows Input: 5
Output:
A
A B
A B C
A B C D
A B C D E

This program is also known as right-angled triangle patterns using the alphabet in java as the right angle is formed on the right side of the pattern.

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Java Program to print Half Pyramid using Alphabets

The program takes a user input for the number of rows to be displayed on the screen. The Alphabet starts from A and increases at every row such as A, Ab, ABC, and so on.

import java.util.Scanner;

public class Main
{
  public static void main(String args[])
  {
    int rows, i, j;
    char ch;
    Scanner scan = new Scanner(System.in);

    System.out.print("Enter the number of rows: ");
    rows = scan.nextInt();

    System.out.print("Output:\n");
    for (i = 1; i <= rows; i++)
    {
      ch = 'A';
      for (j = 1; j <= i; j++)
      {
        System.out.print(" " + ch++);
      }

      System.out.print("\n");
    }
  }
}

Output:

Enter the number of rows: 7
Output:
A
A B
A B C
A B C D
A B C D E
A B C D E F
A B C D E F G

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