Java-Practice-Programs/Pattern.java at main · Nikhil-codes14/Java-Practice-Programs · GitHub

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public class Pattern {
    void P1() {
        System.out.println("Pattern P1");
        for (int i = 0; i < 5; i++) {
            for (int j = 0; j < 5; j++) {
                System.out.print(" * ");
            }
            System.out.println(" ");
        }
    }

    void P2() {
        System.out.println("Pattern P2");
        for (int R = 1; R <= 5; R++) {
            for (int C = 1; C <= R; C++) {
                System.out.print("*");
            }
            System.out.println(" ");

        }
    }

    void P3() {
        System.out.println("Pattern P3");
        for (int R = 5; R >= 1; R--) {
            for (int C = 1; C <= R; C++) {
                System.out.print(C);
            }
            System.out.println(" ");
        }
    }

    void P4() {
        System.out.println("Pattern P4");
        for (int R = 1; R <= 5; R++) {
            for (int C = 1; C <= 5; C++) {
                if (R >= 2 && C >= 2 && R <= 4 && C <= 4) {
                    System.out.print("   ");
                } else {
                    System.out.print(" * ");
                }

            }
            System.out.println();
        }

    }

    void P5() {
        System.out.println("Pattern P5");
        for (int R = 1; R <= 5; R++) {
            for (int C = 1; C < 5; C++) {
                System.out.print(" ");
            }
            for (int C = R; C < 5; C++) {
                System.out.print(" * ");
            }
            System.out.println();
        }
    }

    void P6() {
        System.out.println("Pattern P6");
        for (int R = 1; R <= 5; R++) {
            for (int C = 1; C <= 5; C++) {
                if ((R >= 2 && C >= 2 && R <= 4 && C <= 4) || (R == 1 && C == 1) || (R == 1 && C == 5)
                        || (R == 5 && C == 1) || (R == 5 && C == 5)) {
                    System.out.print("   ");
                } else {
                    System.out.print(" * ");
                }
            }
            System.out.println();
        }

    }

    void P7() {
        System.out.println("Pattern P7");
        for (int R = 1; R <= 5; R++) {
            for (int C = 1; C <= 5; C++) {
                if ((C == 1 || C == 5 || R == C)) {
                    System.out.print(" N ");
                } else {
                    System.out.print("   ");
                }
            }
            System.out.println();
        }
    }

    void P8() {
        System.out.println("Pattern P8");
        for (int R = 1; R <= 5; R++) {
            for (int C = 1; C <= 5; C++) {
                if (R == 1 || R == 3 || R == 5 || (R == 2 && C == 1) || (R == 4 && C == 5)) {
                    System.out.print(" S ");
                } else {
                    System.out.print("   ");
                }
            }
            System.out.println();
        }
    }

    public static void main(String Args[]) {
        Pattern obj = new Pattern();
        obj.P1();
        obj.P2();
        obj.P3();
        obj.P4();
        obj.P5();
        obj.P6();
        obj.P7();
        obj.P8();
    }

}