ICSE Class 10 Computer Applications
Question 42 of 69
Iterative Constructs in Java — Question 42
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Question Question 30(ix)
Write a program in Java to find the sum of the given series:
1 + 3 + 7 + 15 + 31 + ..... + (220 - 1)
public class KboatSeries
{
public static void main(String args[]) {
double sum = 0;
for (int i = 1; i <= 20; i++) {
double term = Math.pow(2,i) - 1;
sum += term;
}
System.out.println("Sum = " + sum);
}
}Output
