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Generate Triangle / Inverted Triangle Program - Java Programs

Write a program to generate a triangle or an inverted triangle till n terms based upon the user’s choice of triangle to be displayed.
Example 1:
INPUT:
Type 1 for a triangle and type 2 for an inverted triangle
1
Enter the number of terms:
5
OUTPUT:
1
2 2
3 3 3
4 4 4 4
5 5 5 5 5

Example 2:
INPUT:
Type 1 for a triangle and type 2 for an inverted triangle
2
Enter the number of terms:
6
OUTPUT:
6 6 6 6 6 6
5 5 5 5 5
4 4 4 4
3 3 3
2 2
1

Java 

import java.util.Scanner;
class Triangle{
    public static void main(String args[]){
        Scanner in = new Scanner(System.in);
        System.out.println("Type 1 for a triangle");
        System.out.println("Type 2 for an inverted triangle");
        System.out.print("Enter your choice: ");
        int choice = Integer.parseInt(in.nextLine());
        switch(choice){
            case 1:
            System.out.print("Number of terms: ");
            int n = Integer.parseInt(in.nextLine());
            for(int i = 1; i <= n; i++){
                for(int j = 1; j <= i; j++)
                    System.out.print(i);
                System.out.println();
            }
            break;
            case 2:
            System.out.print("Number of terms: ");
            n = Integer.parseInt(in.nextLine());
            for(int i = n; i >= 1; i--){
                for(int j = 1; j <= i; j++)
                    System.out.print(i);
                System.out.println();
            }
            break;
            default:
            System.out.println("Invalid choice!");
        }
    }
}

Output

 
 OUTPUT 1: 
Type 1 for a triangle
Type 2 for an inverted triangle
Enter your choice: 1
Number of terms: 5
1
22
333
4444
55555 

 OUTPUT 2: 
Type 1 for a triangle
Type 2 for an inverted triangle
Enter your choice: 2
Number of terms: 6
666666
55555
4444
333
22
1
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