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Java Conditional Statement Exercises: Generate a following @'s triangle

Java Conditional Statement: Exercise-24 with Solution

Write a java program to generate a following @'s triangle.

Test Data
Input the number: 6

Pictorial Presentation:

Java conditional statement Exercises: Generate a following @'s triangle

Sample Solution:

Java Code:

import java.util.Scanner;
public class Exercise24 {
   public static void main(String args[]) 
    {
        Scanner in = new Scanner(System.in);
        System.out.print("Input the number: ");
        int n = in.nextInt();

        for (int i = 0; i < n; i++) 
        {
            for (int spc = n - i; spc > 0; spc--) 
            {
                System.out.print(" ");
            }
            for (int j = 0; j <= i; j++) 
            {
                System.out.print("@");
            }
            System.out.println();
        }
    }

}

Sample Output:

Input the number: 6                                                                                           
      @                                                                                                       
     @@                                                                                                       
    @@@                                                                                                       
   @@@@                                                                                                       
  @@@@@                                                                                                       
 @@@@@@

Flowchart:

Flowchart: Java Conditional Statement Exercises - Generate a following @'s triangle

Java Code Editor:

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Java: Tips of the Day

How to sort an ArrayList?

Collections.sort(testList);
Collections.reverse(testList);

That will do what you want. Remember to import Collections though!

Ref: https://bit.ly/32urdSe