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Computer Applications

Write a program in Java to find the sum of the given series:

1 + 3 + 7 + 15 + 31 + ….. + (220 - 1)

Java

Java Iterative Stmts

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Answer

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

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