Chapter 3, Problem 1PP

Program Plan Intro

Print Christmas tree

Program plan:

• Import the required package.
• Create a class “ChristmasTree”,
  • Define the method “main()”,
    • Declare the necessary variables.
    • Create “Scanner” object.
    • Prompt the user to enter the number of segments and height of the Christmas tree.
    • Get the number of segments and height from the user.
    • Print new line.
    • Assign the number of segments and height to the variable “m” and “n” respectively.
    • Set the starting row value to “1”.
    • Create “for” loop to iterate till number of segments using “i”,
      • Create “for” loop to iterate till the height of the tree using “j”,
        • Execute “while” loop,
        • • Print space.
          • Increment counter variable.
        • Create loop whenever the number of rows greater than the “i” value,
        • • Print space.
        • Create loop whenever the “j” value is less than or equal to “i” value,
        • • Print “*”.
        • Create loop using the variable “k” whenever the value is less than “i”,
        • • Print “*”.
        • Print new line.
      • Increment the starting row.
      • Increment the number of rows.
    • Print stem of the tree as follows,
    • Create loop till the value get from dividing the (number of rows*number of segments-1) by “2”,
      • Print space.
    • Print “*”.
    • Create loop till the value get from dividing the (number of rows*number of segments-1) by “2”,
      • Print space.
    • Print “*”.
    • Create loop till the value get from subtracting “3” from the value which is obtained from dividing the (number of rows*number of segments-1) by “2”,
      • Print the space.
    • Create loop till the value “7”.
      • Print “*”.