oop/03-interfaces/BasicCalculator.java


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//public class BasicCalculator implements Calculator, ScientificCalculator {
public class BasicCalculator implements Calculator {

	public int add(int a, int b) {
		return a + b;
	}

	public int subtract(int a, int b) {
		return a - b;
	}

	public double divide(double a, double b) {
		return a / b;
	}
}