Program to print right triangle star pattern in Java

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Program to print right triangle star pattern in Java

In this article, we will discuss the Program to print the right triangle star pattern 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 a right triangle star pattern using for, while and do-while loop in Java language,

Program to print right triangle star pattern in Java using for loop

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

Program 1

//program to print right triangle star pattern
import java.util.Scanner;
public class RightTrianleStar{//class
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.print("\n");
for(int i=1; i<=rows; i++){//outer for loop 
   for(int j=1; j<=i; j++){//inner for loop
   //print i number of star 
     
       System.out.print("*");

}
 System.out.print("\n");//move to next line

}
}
}

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

Program to print right triangle star pattern in Java using while loop

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

Program 2

//program to print right triangle star pattern
import java.util.Scanner;
public class RightTrianleStar1{//class
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.print("\n");
int i=1;
while(i<=rows){//outer while loop 
int j=1;
   while(j<=i){//inner while loop
   //print i number of star 
     
       System.out.print("*");
j++;
}
 System.out.print("\n");//move to next line
 i++;
}
}
}

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

Program to print right triangle star patter in Java using do- while loop

This program allows the user to enter the number of rows and then the program displays the Right triangle star pattern using the do-while loop in Java language

Program 3

//program to print right triangle star pattern
import java.util.Scanner;
public class RightTrianleStar2{//class
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.print("\n");
int i=1;
do{//outer do-while loop 
int j=1;
   do{//inner do-while loop
     
       System.out.print("*");
j++;
}while(j<=i); //print i number of star 
 System.out.print("\n");//move to next line
 i++;
}while(i<=rows);
}
}

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