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public double divide(double a, double b) { if (b == 0) { throw new ArithmeticException("Cannot divide by zero"); } return a / b; } } Modify App.java to use the Calculator class:
import org.junit.jupiter.api.Test; import static org.junit.jupiter.api.Assertions.assertEquals; import static org.junit.jupiter.api.Assertions.assertThrows;
// src/main/java/com/example/Calculator.java
public class Calculator {
package com.example;
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