### Question:
NumberUtils { public static Float tryParseFloat(String number) { return tryParseFloat(number, 0.f); } private  NumberUtils(); static Long tryParseLong(String number); static Long tryParseLong(String number, Long fallback); static Integer tryParseInt(String number); static Integer tryParseInt(String number, Integer fallback); static Float tryParseFloat(String number); static Float tryParseFloat(String number, Float fallback); static Double tryParseDouble(String number); static Double tryParseDouble(String number, Double fallback); static boolean isNumber(String number); static final String TAG; }### Answer:
@Test public void testTryParseFloat() throws Exception { Assert.assertEquals(Float.valueOf(0), NumberUtils.tryParseFloat("0")); Assert.assertEquals(Float.valueOf("1.23f"), NumberUtils.tryParseFloat("1.23f")); Assert.assertEquals(Float.valueOf("-1.23f"), NumberUtils.tryParseFloat("-1.23f")); Assert.assertEquals(Float.valueOf(Float.MAX_VALUE), NumberUtils.tryParseFloat(String.valueOf(Float.MAX_VALUE))); Assert.assertEquals(Float.valueOf(Float.MAX_EXPONENT), NumberUtils.tryParseFloat(String.valueOf(Float.MAX_EXPONENT))); Assert.assertEquals(Float.valueOf(Float.MIN_VALUE), NumberUtils.tryParseFloat(String.valueOf(Float.MIN_VALUE))); Assert.assertEquals(Float.valueOf(Float.MIN_NORMAL), NumberUtils.tryParseFloat(String.valueOf(Float.MIN_NORMAL))); Assert.assertEquals(Float.valueOf(Float.MIN_EXPONENT), NumberUtils.tryParseFloat(String.valueOf(Float.MIN_EXPONENT))); Assert.assertEquals(Float.valueOf(0), NumberUtils.tryParseFloat(String.valueOf("3.40282346638528860f+38f"))); Assert.assertEquals(Float.valueOf(0), NumberUtils.tryParseFloat(String.valueOf("1.40129846432481707f-45f"))); Assert.assertEquals(Float.valueOf(0), NumberUtils.tryParseFloat(String.valueOf("-"))); Assert.assertEquals(Float.valueOf(0), NumberUtils.tryParseFloat(String.valueOf("a"))); }