import java.util.*; public class Pattern{ public static void main(String[] args){ System.out.println("This program is to display different patterns shown in stars"); System.out.println("Kindly enter a pattern you would like to view"); System.out.println("To view any pattern, please enter any number from 1 - 5"); System.out.println("Each number represents a view"); try{ int select; Scanner bro = new Scanner(System.in); System.out.println("Enter a number: "); select = bro.nextInt(); while (select < 1 || select > 5){ System.out.println("Please enter 1, 2, 3, 4 or 5: "); select = bro.nextInt(); } switch(select){ case 1: System.out.println("you have selected patttern 1 and here goes the view:"); System.out.println(" "); for (int i=1;i<=5;i++){ for (int j=i;j<=5;j++){ System.out.print("*"); } System.out.println(); } break; case 2: System.out.println("you have selected patttern 2 and here goes the view:"); System.out.println(" "); for(int i=1;i<=5;i++){ for(int j=1;j<=i;j++){ System.out.print("*"); } System.out.println(); } break; case 3: System.out.println("you have selected patttern 3 and here goes the view:"); System.out.println(" "); for (int i=1;i<=5;i++){ for (int j=i;j<=5;j++){ System.out.print("*"); } System.out.println(); } for(int i=1;i<=5;i++){ for(int j=1;j<=i;j++){ System.out.print("*"); } System.out.println(); } break; case 4: System.out.println("you have selected patttern 4 and here goes the view:"); System.out.println(" "); int a = 12; int b = 2; int c = a - 1; for(int i=1;i<=(a/2);i++){ for(int j=1;j<=a;j++){ if(j>=b && j<=c){ System.out.print(" "); } else{ System.out.print("*"); } } b += 1; c -= 1; System.out.println(); } break; case 5: System.out.println("you have selected patttern 5 and here goes the view:"); System.out.println(" "); for(int i=1;i<=5;i++){ for(int j=1;j<=i;j++){ System.out.print("*"); } System.out.println(); } for (int i=1;i<=5;i++){ for (int j=i;j<=5;j++){ System.out.print("*"); } System.out.println(); } break; } } catch(Exception e){ System.out.println("Oops, this program needs only integer type of input"); System.out.println("As this input represents any type of the pattern 1 to 5"); System.out.println("Please try again, and this time with an integer input from 1 - 5"); } } }

Different Pattern views