Java program to print a reducing half triangle pattern.

//Java program to print reducing half triangle. 

import java.util.Scanner;

class ReducingTriangle

{

static void reducingTriangle()

{

System.out.print("Enter the height of the triangle :");

Scanner sc = new Scanner(System.in);

int height = sc.nextInt();

int height_inner = height;

for(int i = 0; i < height; i++)

{

for(int j = 1; j<= height_inner; j++)

{

System.out.print(j);

}

//reduce height_inner by 1.

height_inner--;

//Start a new line.

System.out.println();

}

}

public static void main(String[] args)

{

reducingTriangle();

}

}

Output: