How to Remove First and Last Character in a String in Java

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"));
    }
}