How to resolve import org JUnit in Eclipse

// Resolve import org JUnit in Eclipse
// EvenOdd.java
public class EvenOdd {

public boolean isEvenNumber(int number){
       
        boolean result = false;
        if(number%2 == 0){
            result = true;
        }
        return result;
    }
}

// JunitTestDemo.java
import static org.junit.Assert.assertEquals;
import org.junit.Test;

public class JunitTestDemo {

@Test
    public void testEvenOddNumber(){
EvenOdd eo = new EvenOdd();
        assertEquals("10 is a even number", true, eo.isEvenNumber(10));
    }
}
Live demo: https://www.youtube.com/watch?v=_l4-qFrVuw4