Package org.apache.http.util

Class LangUtils

  • public final class LangUtils
extends java.lang.Object
    A set of utility methods to help produce consistent equals and hashCode methods.
    Since:
    4.0

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static int HASH_OFFSET  
      static int HASH_SEED  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static boolean equals​(java.lang.Object[] a1, java.lang.Object[] a2)
      Check if two object arrays are equal.
      static boolean equals​(java.lang.Object obj1, java.lang.Object obj2)
      Check if two objects are equal.
      static int hashCode​(int seed, boolean b)  
      static int hashCode​(int seed, int hashcode)  
      static int hashCode​(int seed, java.lang.Object obj)  

      • Methods inherited from class java.lang.Object

        equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Method Detail

      • hashCode

        public static int hashCode​(int seed,
                           int hashcode)

      • hashCode

        public static int hashCode​(int seed,
                           boolean b)

      • hashCode

        public static int hashCode​(int seed,
                           java.lang.Object obj)

      • equals

        public static boolean equals​(java.lang.Object obj1,
                             java.lang.Object obj2)
        Check if two objects are equal.
        Parameters:
        obj1 - first object to compare, may be null
        obj2 - second object to compare, may be null
        Returns:
        true if the objects are equal or both null

      • equals

        public static boolean equals​(java.lang.Object[] a1,
                             java.lang.Object[] a2)
        Check if two object arrays are equal.
        • If both parameters are null, return true
        • If one parameter is null, return false
        • If the array lengths are different, return false
        • Compare array elements using .equals(); return false if any comparisons fail.
        • Return true
        Parameters:
        a1 - first array to compare, may be null
        a2 - second array to compare, may be null
        Returns:
        true if the arrays are equal or both null