src/share/classes/java/lang/Float.java

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*** 457,467 **** * * @param v the value to be tested. * @return {@code true} if the argument is NaN; * {@code false} otherwise. */ ! static public boolean isNaN(float v) { return (v != v); } /** * Returns {@code true} if the specified number is infinitely --- 457,467 ---- * * @param v the value to be tested. * @return {@code true} if the argument is NaN; * {@code false} otherwise. */ ! public static boolean isNaN(float v) { return (v != v); } /** * Returns {@code true} if the specified number is infinitely
*** 469,482 **** * * @param v the value to be tested. * @return {@code true} if the argument is positive infinity or * negative infinity; {@code false} otherwise. */ ! static public boolean isInfinite(float v) { return (v == POSITIVE_INFINITY) || (v == NEGATIVE_INFINITY); } /** * The value of the Float. * * @serial */ --- 469,497 ---- * * @param v the value to be tested. * @return {@code true} if the argument is positive infinity or * negative infinity; {@code false} otherwise. */ ! public static boolean isInfinite(float v) { return (v == POSITIVE_INFINITY) || (v == NEGATIVE_INFINITY); } + + /** + * Returns {@code true} if the argument is a finite floating-point + * value; returns {@code false} otherwise (for NaN and infinity + * arguments). + * + * @param f the {@code float} value to be tested + * @return {@code true} if the argument is a finite + * floating-point value, {@code false} otherwise. + * @since 1.8 + */ + public static boolean isFinite(float f) { + return Math.abs(f) <= FloatConsts.MAX_VALUE; + } + /** * The value of the Float. * * @serial */