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Method Overloading - Pattern & Series - Java Programs

Design a class to overload a method called pattSeries() as follows:

(a) void pattSeries() – To generate and display the pattern given below:
5 4 3 2 1
4 3 2 1
3 2 1
2 1
1

(b) void pattSeries(int n) – To find and display the sum of the series given below:

Write a main() method to create an object of the class and call the above member methods.

Java


class Overload{
    public void pattSeries(){
        for(int i = 5; i >= 1; i--){
            for(int j = i; j >= 1; j--)
                System.out.print(j + " ");
            System.out.println();
        }
    }
    public void pattSeries(int n){
        double sum = 0.0;
        for(int i = 1; i <= n; i++)
            sum += i / (i + 2.0);
        System.out.println("Sum = " + sum);
    }
    public static void main(String[] args){
        Overload obj = new Overload();
        obj.pattSeries();
        obj.pattSeries(5);
    }
}

Output

 
 OUTPUT 1: 
5 4 3 2 1 
4 3 2 1 
3 2 1 
2 1 
1 

Sum = 2.814285714285714