The challenge
The goal is to create a function that removes the first and last characters of a string. You don’t have to worry with strings with less than two characters.
The solution in Java code
public class RemoveChars {
public static String remove(String str) {
return str.substring(1, str.length()-1);
}
}
Test cases to validate our Java solution
import org.junit.Test;
import static org.junit.Assert.assertEquals;
public class RemoveCharsTest {
@Test
public void testRemoval() {
assertEquals("loquen", RemoveChars.remove("eloquent"));
assertEquals("ountr", RemoveChars.remove("country"));
assertEquals("erso", RemoveChars.remove("person"));
assertEquals("lac", RemoveChars.remove("place"));
}
}
