Java Program to Print Square Star Pattern

// Java Program to Print Square Pattern
// Case 1: Hollow rectangle

// Importing input output classes
import java.io.*;

// Main class
class GFG {

	// Method 1
	// To print hollow rectangle
	static void print_rectangle(int k, int l)
	{
		int a, b;

		// Nested for loops for iterations

		// Outer loop for rows
		for (a = 1; a <= k; a++) {
			// Inner loop for columns
			for (b = 1; b <= l; b++) {
				// Condition check using logical OR operator
				// over rows and columns positions
				// if found at circumference of rectangle
				if (a == 1 || a == k || b == 1 || b == l)

					// Print the star pattern
					System.out.print("*");
				else

					// Rest inside square print the empty
					// spaces
					System.out.print(" ");
			}

			// By now we are done with only 1 row so
			// New line
			System.out.println();
		}
	}

	// Method 2
	// Main driver method
	public static void main(String args[])
	{
		// Declaring and initializing rows and columns
		// For square row = columns

		// Custom input initialization values
		int rows = 8, columns = 22;

		// Calling the method1 to print hollow rectangle
		// pattern
		print_rectangle(rows, columns);
	}
}