Rhombus star pattern program in Java|Java patterns

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Rhombus star pattern program in Java|Java patterns

In this article, we will discuss the Rhombus star pattern program in Java|Java patterns

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 Rhombus Star Pattern using for, while and do-while loop in Java language,

Code to display Rhombus pattern using for loop

This program allows the user to enter the number of rows with any symbols then the program displays the Rhombus star pattern using for loop in Java language

Program 1

//program to print rhombus star pattern
import java.util.Scanner;
public class RhombusStar1{//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: ");
//Ask input from the user as symbol
char ch=scan.next().charAt(0);
//Store the symbol entered by user
System.out.print("\n");
for(int i=1; i<=rows; i++){//outer for loop 
   for(int j=1; j<=rows-i; j++){//inner for loop
   System.out.print(" ");//print space
   }
   for(int j=1; j<=rows; j++){//inner for loop
   System.out.print(ch);//print symbol after space
}
 System.out.print("\n");//move to next line
}
}
}

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

Rhombus star pattern program in Java|Java patterns — Rhombus star pattern program

Code to display Rhombus pattern using while loop

This program allows the user to enter the number of rows with any symbols then the program displays the Rhombus star pattern using while loop in Java language

Program 2

//program to print rhombus star pattern
import java.util.Scanner;
public class RhombusStar2{//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: ");
//Ask input from the user as symbol
char ch=scan.next().charAt(0);
//Store the symbol entered by user
System.out.print("\n");
int i=1;
while(i<=rows){//outer while loop 
int j=1;
   while(j<=rows-i){//inner while loop
   System.out.print(" ");//print space
    j++;
   }
   j=1;
   while(j<=rows){//inner while loop
   System.out.print(ch);//print symbol after space
   j++;
}
 System.out.print("\n");//move to next line
 i++;
}
}
}

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

Code to display Rhombus pattern using do-while loop

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

Program 3

//program to print rhombus star pattern
import java.util.Scanner;
public class RhombusStar3{//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: ");
//Ask input from the user as symbol
char ch=scan.next().charAt(0);
//Store the symbol 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(" ");//print space
    j++;
   }while(j<=rows-i);
   j=1;
   do{//inner do-while loop
   System.out.print(ch);//print symbol after 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 following result