What is JUnit Framework and how do I use it?

What is JUnit Framework and how do I use it?

JUnit is a popular testing framework for Java that allows developers to write and run repeatable tests. It helps ensure that code behaves as expected.

Can you show me a simple example of a JUnit test?

Sure! Here's a basic example:

import org.junit.Test;
import static org.junit.Assert.*;

public class SimpleTest {
    @Test
    public void testAddition() {
        assertEquals(2, 1 + 1);
    }
}

What annotations are commonly used in JUnit?

Common annotations include @Test for test methods, @Before for setup methods, and @After for cleanup methods.

How do I run JUnit tests in an IDE?

In most IDEs like IntelliJ or Eclipse, you can right-click on the test class or method and select 'Run'. The IDE will handle the execution and show results.