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[Java] Inverted Right Triangle Pattern Program

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In this “Print Inverted Right Triangle Pattern” – We have written Java programs to print/draw Inverted Right Triangle pattern by using different types of Java loops and you can execute and try these Java program through your IDE. This is most [100+] Frequently Asked Java Program on beginner level to check you Java Programming skills and Concept.

Inverted Right Triangle Pattern Example

This post covers following ways to print Inverted Right Triangle Pattern:

  • Print Inverted Right Triangle Java Program: Using for Loop
  • Print Inverted Right Triangle Java Program: Using While Loop
  • Print Inverted Right Triangle Java Program: Using Do-While Loop

Inverted Right Triangle Pattern Java Program: For Loop

This Inverted Right Triangle Java Program is following the below logic:

  • Run the outer for loop till entered size (int i = n; i > 0; i–) to print symbol. Where the n represent the size of triangle.
  • Every in inner for loop (int j = 0; j < i; j++) this size will get reduce by one do print symbol and continue till outer loop is not completed.
package _1_patterns.Inverted_Right_Triangle;

import java.util.Scanner;

public class InvertedRightTrianglePatternForLoop {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);

		System.out.println("Enter Pattern Size : ");
		int size = sc.nextInt();

		System.out.print("Enter Symbol : ");
		char symbol = sc.next().charAt(0);

		drawInvertedRightTrianglePattern(size, symbol);

		// Close Scanner
		sc.close();
	}

	private static void drawInvertedRightTrianglePattern(int n, char c) {
		for (int i = n; i > 0; i--) {
			for (int j = 0; j < i; j++) {
				System.out.print(c);
			}
			System.out.println();
		}
	}
}

Output

Enter Pattern Size : 
5
Enter Symbol : *
*****
****
***
**
*

Inverted Right Triangle Pattern Java Program: While Loop

This Inverted Right Triangle Java Program is following the below logic:

  • Run the outer while loop till entered size (i > 0) to print symbol. Where the n represent the size of triangle.
  • Every in inner while loop (j++ < i) this size will get reduce by one do print symbol and continue till outer loop is not completed.
package _1_patterns.Inverted_Right_Triangle;

import java.util.Scanner;

public class InvertedRightTrianglePatternForLoop {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);

		System.out.println("Enter Pattern Size : ");
		int size = sc.nextInt();

		System.out.print("Enter Symbol : ");
		char symbol = sc.next().charAt(0);

		drawInvertedRightTrianglePattern(size, symbol);

		// Close Scanner
		sc.close();
	}

	private static void drawInvertedRightTrianglePattern(int n, char c) {
		int i = n, j;
		while (i > 0) {
			j = 0;
			while (j++ < i) {
				System.out.print(c);
			}
			System.out.println();
			i--;
		}
	}
}

Output

Enter Pattern Size : 
7
Enter Symbol : #
#######
######
#####
####
###
##
#

Inverted Right Triangle Pattern Java Program: Do-While Loop

This Inverted Right Triangle Java Program is following the below logic:

  • Run the outer do-while loop till entered size (–i > 0) to print symbol. Where the n represent the size of triangle.
  • Every in inner do-while loop (++j < i) this size will get reduce by one do print symbol and continue till outer loop is not completed.
package _1_patterns.Inverted_Right_Triangle;

import java.util.Scanner;

public class InvertedRightTrianglePatternForLoop {
public static void main(String[] args) {

    Scanner sc = new Scanner(System.in);

    System.out.println("Enter Pattern Size : ");
    int size = sc.nextInt();

    System.out.print("Enter Symbol : ");
    char symbol = sc.next().charAt(0);

    drawInvertedRightTrianglePattern(size, symbol);

    // Close Scanner
    sc.close();
}

private static void drawInvertedRightTrianglePattern(int n, char c) {
int i = n;
		do {
			int j = 0;
			do {
				System.out.print(c);
			} while (++j < i);
			System.out.println();
		} while (--i > 0);
}
}

Output

Enter Pattern Size : 
8
Enter Symbol : $
$$$$$$$$
$$$$$$$
$$$$$$
$$$$$
$$$$
$$$
$$
$

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