public void twoChar()
{
assertEquals("Input: twoChar(\"java\", 0)", "ja", exercises.TwoChar("java", 0));
assertEquals("Input: twoChar(\"java\", 2)", "va", exercises.TwoChar("java", 2));
assertEquals("Input: twoChar(\"java\", 3)", "ja", exercises.TwoChar("java", 3));
assertEquals("Input: twoChar(\"java\", 4)", "ja", exercises.TwoChar("java", 4));
assertEquals("Input: twoChar(\"java\", -1)", "ja", exercises.TwoChar("java", -1));
assertEquals("Input: twoChar(\"Hello\", 0)", "He", exercises.TwoChar("Hello", 0));
assertEquals("Input: twoChar(\"Hello\", 1)", "el", exercises.TwoChar("Hello", 1));
assertEquals("Input: twoChar(\"Hello\", 99)", "He", exercises.TwoChar("Hello", 99));
assertEquals("Input: twoChar(\"Hello\", 3)", "lo", exercises.TwoChar("Hello", 3));
assertEquals("Input: twoChar(\"Hello\", 4)", "He", exercises.TwoChar("Hello", 4));
assertEquals("Input: twoChar(\"Hello\", 5)", "He", exercises.TwoChar("Hello", 5));
assertEquals("Input: twoChar(\"Hello\", -7)", "He", exercises.TwoChar("Hello", -7));
assertEquals("Input: twoChar(\"Hello\", 6)", "He", exercises.TwoChar("Hello", 6));
assertEquals("Input: twoChar(\"Hello\", -1)", "He", exercises.TwoChar("Hello", -1));
assertEquals("Input: twoChar(\"yay\", 0)", "ya", exercises.TwoChar("yay", 0));
}
