Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
11th Edition
ISBN: 9780134670942
Author: Y. Daniel Liang
Publisher: PEARSON
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Chapter 27.7, Problem 27.7.1CP
Program Plan Intro

Hash Code:

  • First, a hash function converts a search key to an integer value and then it compresses this hash code into an index in the hash table.
  • The hash code is simply a 32-bit signed int number, where the object is managed by a hash table.
  • Actually, hash code is not a unique number for an object. The two objects will return the same hash code if both the objects are equal.

Bit Shift Operators:

There are two bit shift operators: the left shift operator << and the right shift operator >>.

Syntax:

some_int << number_of_bits

some_int >> number_of_bits

where,

  • some_int is an integer value or variable.
  • number_of_bits is an integer value is at most 8 *.
  • The left shift operator multiplies the left operand by 2 raised to the right operand power. In math notation, x << y equals x * 2y.
  • The right shift operator >> is used to divide by powers of 2.

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