Java Programming | Drawing a right angled triangle of numbers

Introduction

This is a tutorial for drawing a right angled triangle of numbers in java. The program is given below that uses a loop to draw the triangle. The program is extendable. Go enjoy the program. Lets begin………..

Program for drawing a right angled triangle of numbers in java.

// the name of our class its public
public class RightAngledTriangleNumbers {
	//void main
		public static void main (String[] args)
		{
			//declare int
			int i,j,n=1;
			//for loops
			for(i=1;i<=5;i++)
			{
				for(j=1;j<=i;j++)
				{
					System.out.print(n+" ");
					n++;
				}
			System.out.print("\n");
			}
		}
}

Output

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

How does it work

No need to input anything. Directly prints the triangle.

Extending it

The program can be extended by extending the number of rows and columns. Go ahead and extend it…..

Explanation.

  1. Declare the class as public
  2. Add the void main function.
  3. Add two loops and print the number and increase number.

At the end.

You learnt creating the Java program for Drawing a right angled triangle of numbers. So now enjoy the program.

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