Hollow inverted right triangle star pattern|program in Java

Table of Contents

Hollow inverted right triangle star pattern|program in Java

In this article, we will discuss the Hollow inverted right triangle star pattern|program in Java

We can display many types of number, star, Alphabet, Binary patterns using for.while and do-while loop in Java language

In this post, we are going to learn how to print Hollow inverted right Triangle Star Pattern using for, while and do-while loop in Java language,

Program to print triangle star pattern

Code to display Hollow Inverted triangle star using for loop

This program allows the user to enter the number of rows with symbols then the program displays the Hollow Inverted right triangle star pattern using for loop in Java language

Program 1

//program to print Hollow inverted right triangle star pattern
import java.util.Scanner;
public class InvertedRightTrianleStar1{//class declaration
public static void main(String args[]){//main method

 Scanner scan=new Scanner(System.in); 
  //create a scanner object for input
  
System.out.println("Enter the number of rows: ");
//Ask input from the user
int rows=scan.nextInt();
//Store the rows entered by user
System.out.println("Enter Symbol as you wish: ");
char ch=scan.next().charAt(0);
System.out.print("\n");
for(int i=1; i<=rows; i++){//outer for loop 
   for(int j=i; j<=rows; j++){//inner for loop
   if(i==1 || j==i || j==rows){
   System.out.print(ch);//print character
   }
   else{
     
   System.out.print(" ");//print space
   }
}
 System.out.print("\n");//move to next line

}
}
}

When the above code is executed, it produces the followibg result

Code to display Hollow Inverted triangle star using While loop

This program allows the user to enter the number of rows with symbols then the program displays the Hollow Inverted right triangle star pattern using while loop in Java language

Program 2

//program to print Hollow inverted right triangle star pattern
import java.util.Scanner;
public class InvertedRightTrianleStar2{//class declaration
public static void main(String args[]){//main method

 Scanner scan=new Scanner(System.in); 
  //create a scanner object for input
  
System.out.println("Enter the number of rows: ");
//Ask input from the user
int rows=scan.nextInt();
//Store the rows entered by user
System.out.println("Enter Symbol as you wish: ");
char ch=scan.next().charAt(0);
System.out.print("\n");
int i=1;
while(i<=rows){//outer while loop 
int j=i;
   while(j<=rows){//inner while loop
   if(i==1 || j==i || j==rows){
   System.out.print(ch);
   }
   else{
     
   System.out.print(" ");
   }
    j++;
}
 System.out.print("\n");//move to next line
 i++;
}
}
}

When the above code is executed, it produces the followibg result

Code to display Hollow Inverted triangle star using do- While loop

This program allows the user to enter the number of rows with symbols then the program displays the Hollow Inverted right triangle star pattern using do-while loop in Java language

Program 3

//program to print Hollow inverted right triangle star pattern
import java.util.Scanner;
public class InvertedRightTrianleStar3{//class declaration
public static void main(String args[]){//main method

 Scanner scan=new Scanner(System.in); 
  //create a scanner object for input
  
System.out.println("Enter the number of rows: ");
//Ask input from the user
int rows=scan.nextInt();
//Store the rows entered by user
System.out.println("Enter Symbol as you wish: ");
char ch=scan.next().charAt(0);
System.out.print("\n");
int i=1;
do{//outer do-while loop 
int j=i;
  do{//inner do-while loop
   if(i==1 || j==i || j==rows){
   System.out.print(ch);//print character
   }
   else{
     
   System.out.print(" ");//print space
   }
    j++;
} while(j<=rows);
 System.out.print("\n");//move to next line
 i++;
}while(i<=rows);
}
}

When the above code is executed, it produces the followibg result