1004 * {@code d2}; and a value greater than {@code 0}
1005 * if {@code d1} is numerically greater than
1006 * {@code d2}.
1007 * @since 1.4
1008 */
1009 public static int compare(double d1, double d2) {
1010 if (d1 < d2)
1011 return -1; // Neither val is NaN, thisVal is smaller
1012 if (d1 > d2)
1013 return 1; // Neither val is NaN, thisVal is larger
1014
1015 // Cannot use doubleToRawLongBits because of possibility of NaNs.
1016 long thisBits = Double.doubleToLongBits(d1);
1017 long anotherBits = Double.doubleToLongBits(d2);
1018
1019 return (thisBits == anotherBits ? 0 : // Values are equal
1020 (thisBits < anotherBits ? -1 : // (-0.0, 0.0) or (!NaN, NaN)
1021 1)); // (0.0, -0.0) or (NaN, !NaN)
1022 }
1023
1024 /** use serialVersionUID from JDK 1.0.2 for interoperability */
1025 private static final long serialVersionUID = -9172774392245257468L;
1026 }
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1004 * {@code d2}; and a value greater than {@code 0}
1005 * if {@code d1} is numerically greater than
1006 * {@code d2}.
1007 * @since 1.4
1008 */
1009 public static int compare(double d1, double d2) {
1010 if (d1 < d2)
1011 return -1; // Neither val is NaN, thisVal is smaller
1012 if (d1 > d2)
1013 return 1; // Neither val is NaN, thisVal is larger
1014
1015 // Cannot use doubleToRawLongBits because of possibility of NaNs.
1016 long thisBits = Double.doubleToLongBits(d1);
1017 long anotherBits = Double.doubleToLongBits(d2);
1018
1019 return (thisBits == anotherBits ? 0 : // Values are equal
1020 (thisBits < anotherBits ? -1 : // (-0.0, 0.0) or (!NaN, NaN)
1021 1)); // (0.0, -0.0) or (NaN, !NaN)
1022 }
1023
1024 /**
1025 * Adds two {@code double} values together as per the + operator.
1026 *
1027 * @param a the first operand
1028 * @param b the second operand
1029 * @return the sum of {@code a} and {@code b}
1030 * @see java.util.function.BinaryOperator
1031 * @since 1.8
1032 */
1033 public static double sum(double a, double b) {
1034 return a + b;
1035 }
1036
1037 /**
1038 * Returns the greater of two {@code double} values.
1039 *
1040 * @param a the first operand
1041 * @param b the second operand
1042 * @return the larger of {@code a} and {@code b}
1043 * @see java.util.function.BinaryOperator
1044 * @since 1.8
1045 */
1046 public static double max(double a, double b) {
1047 return Math.max(a, b);
1048 }
1049
1050 /**
1051 * Returns the lesser of two {@code double} values.
1052 *
1053 * @param a the first operand
1054 * @param b the second operand
1055 * @return the lesser of {@code a} and {@code b}.
1056 * @see java.util.function.BinaryOperator
1057 * @since 1.8
1058 */
1059 public static double min(double a, double b) {
1060 return Math.min(a, b);
1061 }
1062
1063 /** use serialVersionUID from JDK 1.0.2 for interoperability */
1064 private static final long serialVersionUID = -9172774392245257468L;
1065 }
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