@Test public void WORD() { assertTrue(WORD.contains('a')); assertTrue(WORD.contains('c')); assertTrue(WORD.contains('A')); assertTrue(WORD.contains('Z')); assertTrue(WORD.contains('2')); assertTrue(WORD.contains('9')); }
public boolean contains(char ch) { return chars.contains(ch); }
CharSet { public boolean contains(char ch) { return chars.contains(ch); } }
CharSet { public boolean contains(char ch) { return chars.contains(ch); } private  CharSet(String chars); }
CharSet { public boolean contains(char ch) { return chars.contains(ch); } private  CharSet(String chars); static CharSet getInstance(String chars); boolean contains(char ch); }
CharSet { public boolean contains(char ch) { return chars.contains(ch); } private  CharSet(String chars); static CharSet getInstance(String chars); boolean contains(char ch);  }