org.apache.commons.lang3.CharSet

public class CharSetTest { /** * org.apache.commons.lang3.CharSet * * 마땅히 어디에 쓸까나? */ @Test public void test() { CharSet charSetInstance1 = CharSet.getInstance("A-E"); // [A-E] System.out.println(charSetInstance1.toString()); boolean contains = charSetInstance1.contains('F'); assertThat(contains, is(false)); assertThat(CharSet.ASCII_ALPHA .contains('a'), is(true)); assertThat(CharSet.ASCII_ALPHA .contains('A'), is(true)); assertThat(CharSet.ASCII_ALPHA_LOWER.contains('a'), is(true)); assertThat(CharSet.ASCII_ALPHA_LOWER.contains('A'), is(false)); assertThat(CharSet.ASCII_ALPHA_UPPER .contains('a'), is(false)); assertThat(CharSet.ASCII_ALPHA_UPPER .contains('A'), is(true)); assertThat(CharSet.ASCII_NUMERIC .contains('1'), is(true)); assertThat(CharSet.ASCII_NUMERIC .contains('a'), is(false)); } }