How to make a square star pattern in Java
In this shot, we will learn how to create a square star pattern using JavaScript. This pattern is the simplest among the other patterns. The logic to create a square pattern is easy to understand and implement.
A square star pattern looks like the image below:.
This is a 5 x 5 square star pattern. You can see that we need to print * at every row and column. The logic for this is simple, you need a nested for loop which will loop for 5(n) times, along with the outer loop.
At every i,j combination you have to print *.
Code
let n = 5; // row or column count
for(let i = 0; i < n; i++) { // external loop
for(let j = 0; j < n; j++) { // internal loop
process.stdout.write('*');
}
// newline after each row
console.log();
}Explanation
-
In line 1, we initialize the number of rows (the side) in the square.
-
In line 3, the first
forloop will iterate rows. We have five rows (n = 5) so it will loop five times. -
In line 4, this nested
forloop will print*n times which is5, becausen = 5, this loop is responsible for printing the columns. -
In line 5, we print the
*using standard methodprocess.stdout.write('*'). -
In line 8, after every row is completed we need to change the line. To get to the next line we use
console.log()with anullvalue, which will print nothing and change to the next line.
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