Programming Example
Design a class to overload a function series( ) as follows:
Study this program carefully to understand the logic, output, and explanation in a structured way.
Design a class to overload a function series( ) as follows:
(a) void series (int x, int n) – To display the sum of the series given below:
x1 + x2 + x3 + .......... xn terms
(b) void series (int p) – To display the following series:
0, 7, 26, 63 .......... p terms
(c) void series () – To display the sum of the series given below:
1/2 + 1/3 + 1/4 + .......... 1/10
public class RansariOverloadSeries {
// Overloaded method to calculate the sum of powers of x up to n
void series(int x, int n) {
long sum = 0;
for (int i = 1; i <= n; i++) {
sum += Math.pow(x, i);
}
System.out.println("Sum = " + sum);
}
// Overloaded method to print the first p terms of the sequence i^3 - 1
void series(int p) {
for (int i = 1; i <= p; i++) {
int term = (int) (Math.pow(i, 3) - 1);
System.out.print(term + " ");
}
System.out.println();
}
// Overloaded method to calculate the sum of a harmonic series from 1/2 to 1/10
void series() {
double sum = 0.0;
for (int i = 2; i <= 10; i++) {
sum += 1.0 / i;
}
System.out.println("Sum = " + sum);
}
}
// Main class to test the RansariOverloadSeries methods
class Main {
public static void main(String[] args) {
// Create an object of RansariOverloadSeries
RansariOverloadSeries series = new RansariOverloadSeries();
// Test the method: series(int x, int n)
System.out.println("Testing series(int x, int n):");
series.series(2, 5); // Example: x = 2, n = 5
// Test the method: series(int p)
System.out.println("Testing series(int p):");
series.series(5); // Example: p = 5
// Test the method: series()
System.out.println("Testing series():");
series.series();
}
}
Testing series(int x, int n):
Sum = 62
Testing series(int p):
0 7 26 63 124
Testing series():
Sum = 1.9277777777777778
First read the algorithm, then study the program code line by line. After that, compare the code with the output and finally go through the explanation. This approach helps learners understand both the logic and the implementation properly.
After understanding this example, try to rewrite the same program without looking at the code. Then change some values or logic and run it again. This helps improve confidence and keeps learners engaged on the page for longer.