Java Program:

- To print full blank triangle pattern using *

Example:

User Input: 3

Output:

    *
  *   *
* * * * *
import java.util.Scanner;

public class Pattern {

  public static void main(String[] args) {
    Scanner userInput = new Scanner(System.in);
    System.out.print("Enter number of rows : ");

    int rows;
    rows=userInput.nextInt();
    for(int i=rows; i>=1; i--) {
      for(int j=1; j<=(2*rows-i); j++) {
        if(j==i||j==(2*rows-i)||i==1)System.out.print("* ");
        else System.out.print("  ");
      }
      System.out.print("\n");
    }

  }
}

Output:

Enter number of rows: 4

      *
    *   *
  *       *
* * * * * * *
Program
pattern

Main Logic :

for(int i=rows; i>=1; i--) {
  for(int j=1; j<=(2*rows-i); j++) {
    if(j==i||j==(2*rows-i)||i==1)System.out.print("* ");
    else System.out.print("  ");
  }
  System.out.print("\n");
}

You can print any thing in this pattern, just replace your value with *

Concept

Coming Soon !

Quick
Tutorial

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