@Test public void testMultiplyOnVoid() { final Object[][] testParameters = new Object[][] {{new StringBuilder(), "Hello", 0, ""}, {new StringBuilder(), "Hello", 1, "Hello"}, {new StringBuilder(), "Hello", 2, "HelloHello"}}; StringBuilder sb = new StringBuilder(); StringUtils.multiply(sb, null, -1); assertEquals("", sb.toString()); sb = new StringBuilder(); StringUtils.multiply(sb, null, 0); assertEquals("", sb.toString()); sb = new StringBuilder(); StringUtils.multiply(sb, null, 1); assertEquals("", sb.toString()); for (final Object[] testParameter : testParameters) { String expected = (String) testParameter[3]; StringBuilder buffer = (StringBuilder) testParameter[0]; String word = (String) testParameter[1]; int repeat = (Integer) testParameter[2]; StringUtils.multiply(buffer, word, repeat); assertEquals(expected, buffer.toString()); } }
public static String multiply(final String word, final int repeat) { if (null == word) { return EMPTY_STRING; } final StringBuilder buffer = new StringBuilder(); multiply(buffer, word, repeat); return buffer.toString(); }
StringUtils { public static String multiply(final String word, final int repeat) { if (null == word) { return EMPTY_STRING; } final StringBuilder buffer = new StringBuilder(); multiply(buffer, word, repeat); return buffer.toString(); } }
StringUtils { public static String multiply(final String word, final int repeat) { if (null == word) { return EMPTY_STRING; } final StringBuilder buffer = new StringBuilder(); multiply(buffer, word, repeat); return buffer.toString(); }  }
StringUtils { public static String multiply(final String word, final int repeat) { if (null == word) { return EMPTY_STRING; } final StringBuilder buffer = new StringBuilder(); multiply(buffer, word, repeat); return buffer.toString(); }  static boolean isEmpty(final CharSequence str); static int length(final CharSequence str); static boolean hasLength(final CharSequence str); static boolean hasText(final CharSequence str); static String nvl(final String... strs); static List<String> split(final String string, final String delimiter); static String split(final String string, final String delimiter, final int index); static String ltrim(final String str); static String rtrim(final String str); static String trim(final String str); static String join(final Iterable<?> values, final String token); static String join(final Object[] values, final String token); static String multiply(final String word, final int repeat); static void multiply(final StringBuilder buffer, final String word, final int repeat); static String repeat(final String word, final int repeat); static String uncapitalize(final String str); static int countMatches(final String str, final char ch); static String removePrefix(final String str, String prefix); static String removeSuffix(final String str, String suffix); }
StringUtils { public static String multiply(final String word, final int repeat) { if (null == word) { return EMPTY_STRING; } final StringBuilder buffer = new StringBuilder(); multiply(buffer, word, repeat); return buffer.toString(); }  static boolean isEmpty(final CharSequence str); static int length(final CharSequence str); static boolean hasLength(final CharSequence str); static boolean hasText(final CharSequence str); static String nvl(final String... strs); static List<String> split(final String string, final String delimiter); static String split(final String string, final String delimiter, final int index); static String ltrim(final String str); static String rtrim(final String str); static String trim(final String str); static String join(final Iterable<?> values, final String token); static String join(final Object[] values, final String token); static String multiply(final String word, final int repeat); static void multiply(final StringBuilder buffer, final String word, final int repeat); static String repeat(final String word, final int repeat); static String uncapitalize(final String str); static int countMatches(final String str, final char ch); static String removePrefix(final String str, String prefix); static String removeSuffix(final String str, String suffix); static final String NULL_STRING; static final String EMPTY_STRING; }