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/***

Compound interest function with ``BigDecimal``

Equivalent in Python:

def compound_interest(principal, rate, periods):

return principal * ((1 + rate) ** periods - 1)

***/

import java.math.BigDecimal;

public class Interest {

static BigDecimal compoundInterest(BigDecimal principal, BigDecimal rate, int periods) {

return principal.multiply(BigDecimal.ONE.add(rate).pow(periods).subtract(BigDecimal.ONE));

}

public static void main(String[] args) {

BigDecimal principal = new BigDecimal(1000);

BigDecimal rate = new BigDecimal("0.06");

int periods = 5;

System.out.println(compoundInterest(principal, rate, periods));

}

}