Calculator.java

Go to the documentation of this file.

package com.ucoruh.calculator;
 
import org.slf4j.LoggerFactory;
 
import ch.qos.logback.classic.Logger;
public class Calculator {

  private static final Logger logger = (Logger) LoggerFactory.getLogger(Calculator.class);

  public int add(int a, int b) {
    logger.info("add({}, {})", a, b);
    return a + b;
  }

  public int subtract(int a, int b) {
    logger.info("subtract({}, {})", a, b);
    return a - b;
  }

  public int multiply(int a, int b) {
    logger.info("multiply({}, {})", a, b);
    return a * b;
  }

  public double divide(int a, int b) {
    logger.info("divide({}, {})", a, b);
 
    if (b == 0) {
      logger.error("divide by zero requested for dividend {}", a);
      throw new ArithmeticException("Division by zero");
    }
 
    return (double) a / (double) b;
  }
}