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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7.  
  8.  
  9. /* Name of the class has to be "Main" only if the class is public. */
  10.  
  11. class ChristmasTree {
  12.  
  13. 	ChristmasTree(){}
  14.  
  15. 	private final char treeSymbol = '*';
  16.     private char[] ornaments = {'+', 'o', '$', '#'};
  17.     StringBuilder tree = new StringBuilder();
  18.  
  19. 	public void buildRegDecoratedTree(int treeHight) {
  20.  
  21.         //CREATE ROWS OF TREE LOOP
  22.         for (int row = 0; row < treeHight; row++) {
  23.             int maxWidth = (row * 2) + 1;
  24.  
  25.             //ADDING INDENTATION LOOP
  26.             for (int indentation = 0; indentation < treeHight - row - 1; indentation++) {
  27.                 tree.append(" ");
  28.             }
  29.  
  30.             //ADDING TREE SYMBOL WITH ORNAMENTS LOOP
  31. 			for (int idx = 0, idxo = 0; idx < (row*2)+1; ++idx)
  32. 			{
  33. 				if (idx%2 == 1)
  34. 				{
  35. 					tree.append(ornaments[(idxo++)%ornaments.length]);
  36. 				}
  37. 				else
  38. 				{
  39. 					tree.append(treeSymbol);					
  40. 				}
  41.             }
  42.             tree.append(System.lineSeparator());
  43.         }
  44.         System.out.println(tree.toString());
  45.     }
  46.  
  47. 	public static void main (String[] args) throws java.lang.Exception
  48. 	{
  49.         ChristmasTree tree = new ChristmasTree();
  50.         Scanner inPut = new Scanner(System.in);
  51.  
  52.         System.out.println("Pass tree hight: ");
  53.         int treeHight = inPut.nextInt();
  54.     	tree.buildRegDecoratedTree(treeHight);
  55.  
  56.         inPut.close();
  57. 	}
  58. }
Success #stdin #stdout 0.07s 2184192KB
comments (?)
stdin 
12
stdout 
Pass tree hight: 
           *
          *+*
         *+*o*
        *+*o*$*
       *+*o*$*#*
      *+*o*$*#*+*
     *+*o*$*#*+*o*
    *+*o*$*#*+*o*$*
   *+*o*$*#*+*o*$*#*
  *+*o*$*#*+*o*$*#*+*
 *+*o*$*#*+*o*$*#*+*o*
*+*o*$*#*+*o*$*#*+*o*$*
https://ideone.com/j6Z9yF
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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