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 Recursion Java (Factoring + Triangle)

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PostSubject: Recursion Java (Factoring + Triangle)   Tue Oct 23, 2012 1:13 pm

Recursion Java (Factoring + Triangle)

Code:


import java.util.*;
class Recursion{
    public static void main(String []args){
    Scanner ss = new Scanner(System.in);
    System.out.print("Type \"1\" for Factorial or type \"2\" for Triangle ");
    int ch = ss.nextInt();
        if(ch == 1){
        System.out.print("Enter a number to find its Factorial: ");
        int a = ss.nextInt();
        int fact = 1;
            for (int i= 1; i<=a; i++){
            System.out.println(fact + " times " + i + " = " + fact*i);
            fact=fact*i;
            }
            System.out.println("The Factor of "+a+" is "+ +fact);
        }
        else if(ch == 2){
        System.out.print("Enter a base number to to get the sum of the elements of the Triangle: ");     
        int j = ss.nextInt();
        int a = 1;
            for (int i= 1; i<=j; i++){
            a=i*(i+1)/2;
            System.out.println(a);
            }
        System.out.println("The sum of the elements of the triangle is " + a);
     
        }else{
        System.out.println("Invalid Input! \nProgram Exit");
        }
    }
}

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