Java Program to Print Right Triangle of Numbers in Reverse

Write a Java program to print right triangle of numbers in reverse order using for loop.

import java.util.Scanner;

public class RightTriangleNumReverse1 {

private static Scanner sc;

public static void main(String[] args) {

sc = new Scanner(System.in);

System.out.print("Reverse Right Triangle Number Pattern Rows = ");
int rows = sc.nextInt();

System.out.println("Printing Right Triangle of Numbers in Reverse");

for (int i = rows ; i >= 1; i-- )
{
for (int j = rows ; j >= i; j-- )
{
System.out.print(j + " ");
}
System.out.println();
}
}
}

This Java example displays the reverse ordered numbers in the right angled triangle number pattern using a while loop.

import java.util.Scanner;

public class RightTriangleNumReverse2 {

private static Scanner sc;

public static void main(String[] args) {

sc = new Scanner(System.in);

System.out.print("Reverse Right Triangle Number Pattern Rows = ");
int rows = sc.nextInt();

System.out.println("Printing Right Triangle of Numbers in Reverse");
int i = rows, j;

while (i >= 1 )
{
j = rows ;

while(j >= i)
{
System.out.print(j + " ");
j--;
}
System.out.println();
i--;
}
}
}
Reverse Right Triangle Number Pattern Rows = 8
Printing Right Triangle of Numbers in Reverse
8
8 7
8 7 6
8 7 6 5
8 7 6 5 4
8 7 6 5 4 3
8 7 6 5 4 3 2
8 7 6 5 4 3 2 1

Java program to print right angled triangle of numbers in reverse pattern using do while loop.

import java.util.Scanner;

public class RightTriangleNumReverse3 {

private static Scanner sc;

public static void main(String[] args) {

sc = new Scanner(System.in);

System.out.print("Reverse Right Triangle Number Pattern Rows = ");
int rows = sc.nextInt();

System.out.println("Printing Right Triangle of Numbers in Reverse");
int i = rows, j;

do
{
j = rows ;

do
{
System.out.print(j + " ");

} while(--j >= i);
System.out.println();

} while (--i >= 1 ) ;
}
}
Reverse Right Triangle Number Pattern Rows = 14
Printing Right Triangle of Numbers in Reverse
14
14 13
14 13 12
14 13 12 11
14 13 12 11 10
14 13 12 11 10 9
14 13 12 11 10 9 8
14 13 12 11 10 9 8 7
14 13 12 11 10 9 8 7 6
14 13 12 11 10 9 8 7 6 5
14 13 12 11 10 9 8 7 6 5 4
14 13 12 11 10 9 8 7 6 5 4 3
14 13 12 11 10 9 8 7 6 5 4 3 2
14 13 12 11 10 9 8 7 6 5 4 3 2 1