Class Double

lib/java/lang/Double.java:26–476

The wrapper for the primitive type double. @see java.lang.Number @since 1.0

 * @since 1.0
 */
public final class Double extends Number implements Comparable<Double> {

    private static final long serialVersionUID = -9172774392245257468L;

    /**
     * The value which the receiver represents.
     */
    private final double value;

    /**
     * Constant for the maximum {@code double} value, (2 - 2<sup>-52</sup>) *
     * 2<sup>1023</sup>.
     */
    public static final double MAX_VALUE = 1.79769313486231570e+308;

    /**
     * Constant for the minimum {@code double} value, 2<sup>-1074</sup>.
     */
    public static final double MIN_VALUE = 5e-324;

    /* 4.94065645841246544e-324 gets rounded to 9.88131e-324 */

    /**
     * Constant for the Not-a-Number (NaN) value of the {@code double} type.
     */
    public static final double NaN = 0.0 / 0.0;

    /**
     * Constant for the Positive Infinity value of the {@code double} type.
     */
    public static final double POSITIVE_INFINITY = 1.0 / 0.0;

    /**
     * Constant for the Negative Infinity value of the {@code double} type.
     */
    public static final double NEGATIVE_INFINITY = -1.0 / 0.0;

    /**
     * The {@link Class} object that represents the primitive type {@code
     * double}.
     *
     * @since 1.1
     */
    @SuppressWarnings("unchecked")
    public static final Class<Double> TYPE = (Class<Double>) new double[0]
            .getClass().getComponentType();

    // Note: This can't be set to "double.class", since *that* is
    // defined to be "java.lang.Double.TYPE";

    /**
     * Constant for the number of bits needed to represent a {@code double} in
     * two's complement form.
     *
     * @since 1.5
     */
    public static final int SIZE = 64;