Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
4th Edition
ISBN: 9780134787961
Author: Tony Gaddis, Godfrey Muganda
Publisher: PEARSON
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Chapter 18, Problem 11SA
Program Plan Intro

“hashCode” method:

  • The hash code is an integer value which is the characteristic of an object.
  • The hashing algorithm is used to evaluate a hash code for an object.
  • Different objects in the code contain same data and a hashing algorithm should give the same hash code for both.
  • For example, if the user wants to evaluate the hash code for a string, he would use the characters making up the string in the calculation. Possibly the user would use each character’s Unicode value in a mathematical formula which would give us an integer value.

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Below is the code for a Time class that has both an equals method and a hashCode method; however, the body of the hashCode method is missing.  In the text box, write the code you would put inside the body of the hashCode method. Remember that a hashCode with no collisions is better than a hashCode that has collisions and a hashCode with no gaps in the values is better than a hashCode that has gaps. public class Time {     private int hour; // A number between 1 and 12     private int min; // A number between 0 and 59     private boolean pm; // True if the time is pm.       public Time(int hour, int min, boolean pm) {         this.hour = hour;         this .min = min;         this.pm = pm;     }       public int getHour() { return hour; }     public int getMin() { return min; }     public boolean isPM() { return pm == true; }     public boolean isAM() { return pm == false; }       public boolean equals(Object obj) {         if (this == obj)             return true;         if (obj ==…
Below is the code for a Time class that has both an equals method and a hashCode method; however, the body of the hashCode method is missing.  In the text box, write the code you would put inside the body of the hashCode method. Remember that a hashCode with no collisions is better than a hashCode that has collisions and a hashCode with no gaps in the values is better than a hashCode that has gaps. public class Time {     private int hour; // A number between 1 and 12     private int min; // A number between 0 and 59     private boolean pm; // True if the time is pm.       public Time(int hour, int min, boolean pm) {         this.hour = hour;         this .min = min;         this.pm = pm;     }       public int getHour() { return hour; }     public int getMin() { return min; }     public boolean isPM() { return pm == true; }     public boolean isAM() { return pm == false; }       public boolean equals(Object clock) {         if (this == clockj)             return true;         if…

Chapter 18 Solutions

Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)

Ch. 18.2 - Prob. 18.11CPCh. 18.2 - Prob. 18.12CPCh. 18.2 - Prob. 18.13CPCh. 18.2 - Prob. 18.14CPCh. 18.2 - Prob. 18.16CPCh. 18.2 - Prob. 18.17CPCh. 18.2 - Prob. 18.18CPCh. 18.2 - Prob. 18.20CPCh. 18.3 - Prob. 18.21CPCh. 18.3 - Prob. 18.22CPCh. 18.3 - Prob. 18.23CPCh. 18.3 - Prob. 18.24CPCh. 18.3 - Any time you override the Object classs equals...Ch. 18.3 - Prob. 18.26CPCh. 18.3 - Prob. 18.27CPCh. 18.3 - Prob. 18.28CPCh. 18.4 - Prob. 18.29CPCh. 18.4 - Prob. 18.31CPCh. 18.4 - Prob. 18.32CPCh. 18.6 - How do you define a stream of elements?Ch. 18.6 - How does a stream intermediate operation differ...Ch. 18.6 - Prob. 18.35CPCh. 18.6 - Prob. 18.36CPCh. 18.6 - Prob. 18.37CPCh. 18.6 - Prob. 18.38CPCh. 18.6 - Prob. 18.39CPCh. 18 - Prob. 1MCCh. 18 - Prob. 2MCCh. 18 - This type of collection is optimized for...Ch. 18 - Prob. 4MCCh. 18 - A terminal operation in a stream pipeline is also...Ch. 18 - Prob. 6MCCh. 18 - Prob. 7MCCh. 18 - This List Iterator method replaces an existing...Ch. 18 - Prob. 9MCCh. 18 - Prob. 10MCCh. 18 - This is an object that can compare two other...Ch. 18 - This class provides numerous static methods that...Ch. 18 - Prob. 13MCCh. 18 - Prob. 14MCCh. 18 - Prob. 15TFCh. 18 - Prob. 16TFCh. 18 - Prob. 17TFCh. 18 - Prob. 18TFCh. 18 - Prob. 19TFCh. 18 - Prob. 20TFCh. 18 - Prob. 21TFCh. 18 - Prob. 22TFCh. 18 - Prob. 1FTECh. 18 - Prob. 2FTECh. 18 - Prob. 3FTECh. 18 - Prob. 4FTECh. 18 - Write a statement that declares a List reference...Ch. 18 - Prob. 2AWCh. 18 - Assume that it references a newly created iterator...Ch. 18 - Prob. 4AWCh. 18 - Prob. 2SACh. 18 - Prob. 4SACh. 18 - Prob. 5SACh. 18 - Prob. 6SACh. 18 - How does the Java compiler process an enhanced for...Ch. 18 - Prob. 8SACh. 18 - Prob. 9SACh. 18 - Prob. 10SACh. 18 - Prob. 11SACh. 18 - Prob. 12SACh. 18 - Prob. 13SACh. 18 - Prob. 14SACh. 18 - Word Set Write an application that reads a line of...Ch. 18 - Prob. 3PCCh. 18 - Prob. 5PCCh. 18 - Prob. 8PC
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