Floyd’s triangle number pattern using while loop in Java

Floyd’s triangle number pattern using while loop in Java

In this tutorial, we will discuss Floyd’s triangle number pattern using while loop in Java.

Triangle  number pattern using while loop in Java

We can print a lot of patterns (Floyd’s triangle or pyramid triangle)using nested while loop in java.

This example explains how to create Floyd triangle using java Nested while loop

Triangle pattern 1

How to print this number pattern using nested while loop in Java

123456
12345
1234
123
12
1

Program 1

When the above code is executed, the following output is displayed

123456
12345
1234
123
12
1

Triangle pattern 2

How to print this number pattern using nested while loop in Java

1
12
123
1234
12345
123456

Program 2

When the above code is executed, the following output is displayed

1
12
123
1234
12345
123456

Triangle  pattern 3

Program 3

public class WhilePattern2{
  public static void main (String args[]){
int i=1,j=1,k=1,n1=9,n2=10,count=0;
while(i<=n1){
k=1;
while(k<n1-(n1-i)){
System.out.print(" ");
k++;

}
count=n2-i;
j=1;
while(j<=count){
  
  System.out.print(n1-(n1-j));
  j++;
}
i++;

System.out.println(" ");

}
  }
}

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

Triangle pattern 4

Program 4

import java.util.Scanner;
class Whilepatterns{
public static void main(String args[]){
  System.out.println("floyd's triangle number pattren: ");
  //ask input from the user
Scanner scan=new Scanner(System.in);
//cretae scanner object
  System.out.println("Enter the number of row of you want: ");
   int rows =scan.nextInt();//Takes the input from user
   int row =1;
   System.out.println("Here your floyd's triangle ");
    int i=1;
    while(i<=rows){//outer while loop
      int j=1;
      while(j<=i){//inner while loop
        System.out.print(row+" ");
        //print number with space
        row++;
        j++;
    }
    System.out.println();
    //move to next line
    i++;
   }        
   }
}

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

 

 

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