Hollow Rectangle Pattern Java Programming Code

Hollow Rectangle Pattern Java Programming Code Output:

Hollow Rectangle Pattern Simple Java Code:

public class HollowRectanglePattern {

    public static void hollow_rectangle(int totRows, int totCols) {

        // outer Loop

        for (int i = 1; i <= totRows; i++) {

            // inner - columns

            for (int j = 1; j <= totCols; j++) {

                // cell = (i,j)

                if (i == 1 || i == totRows || j == 1 || j == totCols) {

                    // boundary cells

                    System.out.print("*");

                } else {

                    System.out.print(" ");

                }

            }

            System.out.println();

        }

    }

    public static void main(String[] args) {

        hollow_rectangle(10, 15);

    }

}

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