程序包 edu.princeton.cs.algs4

类 Interval1D

  • public class Interval1D
extends java.lang.Object
    The Interval1D class represents a one-dimensional interval. The interval is closed—it contains both endpoints. Intervals are immutable: their values cannot be changed after they are created. The class Interval1D includes methods for checking whether an interval contains a point and determining whether two intervals intersect.

    For additional documentation, see Section 1.2 of Algorithms, 4th Edition by Robert Sedgewick and Kevin Wayne.

    • 构造器概要

      构造器 
      构造器 说明
      Interval1D​(double min, double max)
      Initializes a closed interval [min, max].

    • 方法概要

      修饰符和类型 方法 说明
      boolean contains​(double x)
      Returns true if this interval contains the specified value.
      boolean equals​(java.lang.Object other)
      Compares this transaction to the specified object.
      int hashCode()
      Returns an integer hash code for this interval.
      boolean intersects​(Interval1D that)
      Returns true if this interval intersects the specified interval.
      double left()
      已过时。
      Replaced by min().
      double length()
      Returns the length of this interval.
      static void main​(java.lang.String[] args)
      Unit tests the Interval1D data type.
      double max()
      Returns the max endpoint of this interval.
      double min()
      Returns the min endpoint of this interval.
      double right()
      已过时。
      Replaced by max().
      java.lang.String toString()
      Returns a string representation of this interval.

      • 从类继承的方法 java.lang.Object

        clone, finalize, getClass, notify, notifyAll, wait, wait, wait

    • 字段详细资料

      • MIN_ENDPOINT_ORDER

        public static final java.util.Comparator<Interval1D> MIN_ENDPOINT_ORDER
        Compares two intervals by min endpoint.

      • MAX_ENDPOINT_ORDER

        public static final java.util.Comparator<Interval1D> MAX_ENDPOINT_ORDER
        Compares two intervals by max endpoint.

      • LENGTH_ORDER

        public static final java.util.Comparator<Interval1D> LENGTH_ORDER
        Compares two intervals by length.

    • 构造器详细资料

      • Interval1D

        public Interval1D​(double min,
                  double max)
        Initializes a closed interval [min, max].
        参数:
        min - the smaller endpoint
        max - the larger endpoint
        抛出:
        java.lang.IllegalArgumentException - if the min endpoint is greater than the max endpoint
        java.lang.IllegalArgumentException - if either min or max is Double.NaN, Double.POSITIVE_INFINITY or Double.NEGATIVE_INFINITY

    • 方法详细资料

      • left

        @Deprecated
public double left()
        已过时。
        Replaced by min().
        Returns the left endpoint of this interval.
        返回:
        the left endpoint of this interval

      • right

        @Deprecated
public double right()
        已过时。
        Replaced by max().
        Returns the right endpoint of this interval.
        返回:
        the right endpoint of this interval

      • min

        public double min()
        Returns the min endpoint of this interval.
        返回:
        the min endpoint of this interval

      • max

        public double max()
        Returns the max endpoint of this interval.
        返回:
        the max endpoint of this interval

      • intersects

        public boolean intersects​(Interval1D that)
        Returns true if this interval intersects the specified interval.
        参数:
        that - the other interval
        返回:
        true if this interval intersects the argument interval; false otherwise

      • contains

        public boolean contains​(double x)
        Returns true if this interval contains the specified value.
        参数:
        x - the value
        返回:
        true if this interval contains the value x; false otherwise

      • length

        public double length()
        Returns the length of this interval.
        返回:
        the length of this interval (max - min)

      • toString

        public java.lang.String toString()
        Returns a string representation of this interval.
        覆盖:
        toString 在类中 java.lang.Object
        返回:
        a string representation of this interval in the form [min, max]

      • equals

        public boolean equals​(java.lang.Object other)
        Compares this transaction to the specified object.
        覆盖:
        equals 在类中 java.lang.Object
        参数:
        other - the other interval
        返回:
        true if this interval equals the other interval; false otherwise

      • hashCode

        public int hashCode()
        Returns an integer hash code for this interval.
        覆盖:
        hashCode 在类中 java.lang.Object
        返回:
        an integer hash code for this interval

      • main

        public static void main​(java.lang.String[] args)
        Unit tests the Interval1D data type.
        参数:
        args - the command-line arguments