### Question:
JavaUtils { public static boolean isAsciiAlpha(char ch) { return (ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z'); }  static String getClassName(String scriptContent); static boolean isAsciiAlpha(char ch); static boolean isDigital(char ch);  }### Answer:
@Test public void testIsAsciiAlpha() { Assert.assertTrue(JavaUtils.isAsciiAlpha('B')); Assert.assertTrue(JavaUtils.isAsciiAlpha('b')); Assert.assertFalse(JavaUtils.isAsciiAlpha('%')); }