### Question:
NumberHelper { public static float parseFloat(String numStr, float defaultValue) { if (numStr != null) { try { return Float.parseFloat(numStr); } catch (NumberFormatException nfe) { } } return defaultValue; } private  NumberHelper(); static int boundInteger(int toBound, IntRange range); static int boundInteger(int toBound, int minimum, int maximum); static long boundLong(long toBound, LongRange range); static long boundLong(long toBound, long minimum, long maximum); static int parseInt(final String string, final int defaultValue); static int parseInt(final String string); static int parseInt(final String string, final int defaultValue,
      final int minimum, final int maximum); static long parseLong(final String string, final long defaultValue); static long parseLong(final String string); static long parseLong(final String string, final long defaultValue,
      final long minimum, final long maximum); static boolean isNumber(final String string); static int parseIntPermissive(String numStr, int defaultValue); static float parseFloat(String numStr, float defaultValue); static double parseDouble(String numStr, double defaultValue); static double round(double value, int decimalPlaces); static int getPageStartOffset(int page, int pageSize); static int getPageStartOffset(int page, int pageSize, int maximum); static int getPageEndOffset(int page, int pageSize, int maximum); static int getPageCount(int items, int pageSize); static Double getMedian(List<Integer> values); static boolean almostEquals(double a, double b); static boolean almostEquals(double a, double b, double epsilon);  }### Answer:
@Test public void parseFloat() { assertEquals(1.0f, NumberHelper.parseFloat("1", 0.0f), 0.01f); assertEquals(1.0f, NumberHelper.parseFloat("1.", 0.0f), 0.01f); assertEquals(1.0f, NumberHelper.parseFloat("1.0", 0.0f), 0.01f); assertEquals(1.0f, NumberHelper.parseFloat(" 1.0", 0.0f), 0.01f); assertEquals(2.0f, NumberHelper.parseFloat("abc", 2.0f), 0.01f); }