How do I use JUnit for testing in Java?

How do I use JUnit for testing in Java?

JUnit is a popular testing framework for Java. You can start by adding the JUnit library to your project.

What are the basic annotations I should know?

The key annotations are @Test for test methods, @Before for setup, and @After for cleanup.

Can you show me a simple test example?

Sure! Here's a simple test case:

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

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

How do I run the tests?

You can run tests using your IDE's built-in tools or by using the command line with Maven or Gradle.