Alphabet Pyramid pattern in Java using while loop

Alphabet Pyramid pattern in Java using while loop

In this tutorial, we will discuss about Alphabet Pyramid pattern in Java using while loop

Alphabet Pyramid pattern in C using while loop

In this program, we are going to learn about how to display  Alphabet pyramid pattern  using while loop  in Java programming language

Here, we display a  Alphabet pyramid pattern program with coding using nested while loop and also we get input from the user using Scanner class  in the  Java language

The user can provide numbers as they wish and get the  Alphabet pyramid pattern according to their input.

Alphabet pyramid pattern 1

Program 1

import java.util.Scanner;//import the scanner class
class PyramidPatternWhile{
public static void main(String args[]){
Scanner scan=new Scanner(System.in);//create a scanner object
System.out.println("Enter the number of rows");
int rows=scan.nextInt();
int i,j;
i=1;
while(i<=rows){
j=1;
  while(j<=rows-i){//print space 
  System.out.print(" ");
  j++;
  }

 
   j=1;
   while(j<=i){//print left site pattern
  System.out.print((char)(j+64));
   j++;
    }

   j=i-1;
   while(j>=1){//print right site pattern
  System.out.print((char)(j+64));
   j--;
}
i++;
System.out.println();
}

}
}

When the above code is executed, it produces the following results

Enter the number of rows
6
          A
        ABA
      ABCBA
    ABCDCBA
  ABCDEDCBA
ABCDEFEDCBA

Alphabet pyramid pattern 2

Program 2

import java.util.Scanner;//import the scanner class
class PyramidPatternWhile1{
public static void main(String args[]){
Scanner scan=new Scanner(System.in);//create a scanner object
System.out.println("Enter the number of rows");
int rows=scan.nextInt();
int i,j;
i=1;
while(i<=rows){//outer while loop
j=1;
  while(j<=rows-i){//inner while loop 1
  System.out.print(" ");//prinet space
  j++;
  }

 
   j=i;
   while(j>0){//inner while loop 2
  System.out.print((char)(j+64));//print left site pattern
   j--;
    }

   j=2;
   while(j<=i){//print right side pattern
  System.out.print((char)(j+64));
   j++;
}
i++;
System.out.println();
}

}
}

When the above code is executed, it produces the following results

Enter the number of rows
6
          A
        BAB
      CBABC
    DCBABCD
  EDCBABCDE
FEDCBABCDEF

Alphabet pyramid pattern 3

Program 3

import java.util.Scanner;//import the scanner class
class PyramidPatternWhile2{
public static void main(String args[]){
Scanner scan=new Scanner(System.in);//create a scanner object
System.out.println("Enter the number of rows");
int rows=scan.nextInt();
int i,j;
i=1;
while(i<=rows){
j=1;
  while(j<=rows-i){
  System.out.print(" ");
  j++;
  }

 
   j=1;
   while(j<=i){
  System.out.print((char)(char)(j+64)+" ");
   j++;
    }
    i++;
    System.out.println();
}

}

}

When the above code is executed, it produces the following results

Enter the number of rows
5
        A
      A B
    A B C
  A B C D
A B C D E

Alphabet pyramid pattern 4

Program 4

import java.util.Scanner;//import the scanner class
class PyramidPatternWhile3{
public static void main(String args[]){
Scanner scan=new Scanner(System.in);//create a scanner object
System.out.println("Enter the number of rows");
int rows=scan.nextInt();
int i,j;
i=1;
while(i<=rows){
j=1;
  while(j<=rows-i){
  System.out.print(" ");
  j++;
  }

 
   j=1;
   while(j<=i){
  System.out.print((char)(char)(i+64)+" ");
   j++;
    }
    i++;
    System.out.println();
}

}

}

When the above code is executed, it produces the following results

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

Alphabet pyramid pattern 5

Program 5

import java.util.Scanner;//import the scanner class
class PyramidPatternWhile4{
public static void main(String args[]){
Scanner scan=new Scanner(System.in);//create a scanner object
System.out.println("Enter the number of rows");
int rows=scan.nextInt();
int i,j;
i=rows;
while(i>=1){
j=1;
  while(j<=rows-i){
  System.out.print("  ");
  j++;
  }

 
   j=1;
   while(j<=2*i-1){
       if(j<=i)
  System.out.print((char)(char)(j+64)+" ");
      else
          System.out.print((char)(char)(2*i-j+64)+" ");
   j++;
    }
    i--;
    System.out.println();
}

}

}

When the above code is executed, it produces the following results

Enter the  number of rows
5
A B C D E D C B A
    A B C D C B A
        A B C B A
            A B A
                A

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