private boolean contains(char c) {
char case_switched_c =
Character.isUpperCase(c) ? Character.toLowerCase(c) : Character.toUpperCase(c);
if (charClassStrings.indexOf(String.valueOf(c)) != -1) return true;
// check for case_insensitive match if needed
if (case_insensitive && (charClassStrings.indexOf(String.valueOf(case_switched_c)) != -1))
return true;
for (char[] range : rangeList) {
if ((Character.compare(range[0], c) <= 0) && (Character.compare(range[1], c) >= 0))
return true; // true if c is within the range
if (case_insensitive)
if ((Character.compare(range[0], case_switched_c) <= 0)
&& (Character.compare(range[1], case_switched_c) >= 0))
return true; // true if case_insensitive matching and c is within the range with its case
// switched
}
return false;
}
/**
* Static Helper Method which asks user specified question and as long as they give a input will
* return a boolean type variable.
*
* @return Boolean value based on user input
*/
public static char getChar(String question, char... characters) {
while (true) {
// Declare Local Variables
boolean present = false;
// Get the character using alternative method to get a char
char letter = RequestInput.getChar(question);
// Iterate through the supplied chars and see if it is present
for (int i = 0; i < characters.length; i++) {
if (Character.compare(characters[i], letter) == 0) {
present = true;
}
}
// If present variable is set to true and it is a valid option
if (present == true) {
// return the character
return letter;
} else {
// Give an error message
System.out.println("You have not entered a valid character (" + letter + ").");
// Continue with next iteration
continue;
}
}
}
boolean charIsBetween(char c, char l, char r) {
return Character.compare(l, c) <= 0 && Character.compare(r, c) >= 0;
}
private void smallestValueIsEqualTo(char target) {
assertTrue(
"Expected " + smallestValueFound() + " to be equal to " + target,
Character.compare(smallestValueFound(), target) == 0);
}
public void test_compare() throws Exception {
assertEquals(0, Character.compare('a', 'a'));
assertTrue(Character.compare('a', 'b') < 0);
assertTrue(Character.compare('b', 'a') > 0);
}