Floyd’s Triangle – Java Implementation

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Floyd’s Triangle:

  • Floyd’s triangle is a right angled triangular array of natural numbers.
  • It named after Robert Floyd.
  • Rows of the triangle filled by consecutive numbers.
  • First row will have single number which is 1.
  • Second row will have two numbers, which are 2 and 3
  • Third row will have three numbers, which are 4, 5 and 6..
  • And so on

Example:

First 5 lines…
1
2 3
4 5 6
7 8 9 10
11 12 13 14 15

Approach:

  • Two nested loops.
  • Outer loop will take care for rows.
  • Inner loop will take care of printing the numbers.
  • Line break after each iteration of inner loop.
  • Keep track of numbers printed so far in a variable.
  • See the code for more understanding.

Code:

Output:

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

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