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Write the hashCode() method of java.lang.Object
Anytime you override equals() you should also override hashCode(). The hashCode() method should ideally return the similar int for any two objects which compare equal and a different int for any two objects in which don't compare equal, where equality is defined through the equals() method. This is used as an index by the java.util.Hashtable class.
In the Car example equality is denoted exclusively by comparing license plates; thus only the licensePlate field is used to denoted the hash code. Since licensePlate is a String, and since the String class has its own hashCode() method, we can sponge off of that. public int hashCode() { return this.licensePlate.hashCode(); }Other times you may require to use the bitwise operators to merge hash codes for multiple fields. There are also a variety of useful techniques in the type wrapper classes (java.lang.Double, java.lang.Float, etc.) in which convert primitive data types to integers that share the similar bit string. These can be used to hash primitive data types.
I need to code using java in netbeans for my dissertation which is in data mining domain...deals with privacy preserving of sensitive rules or items using association rule hiding
Task - Defining a Student class The below illustration will explain how to write a class. We want to write a "Student" class which - should be able to store the below charac
RMI parameters : Primitive types are given by value. 2. References to remote objects are given as remote references that allow the client process to call methods on the rem
1) Categorical variable tread Pattern = {A, B} and numerical variable tread Depth are used to classify Handling = {good, poor} of a vehicle. Depth is normally distributed with mean
How can I improve the performance of a java application , describe the java optimization techniques?
i want the program
Cadence Design Systems: Role Working on tickets including debugging of unix based applications Installations of unix based tools/utlity Installation
The Naming class gives methods for storing and obtaining references to remote objects in the remote object registry.
What is the function of Network Interface Card? NIC is an I/O device which plugs within the computer and it enables it to communicate over a network.
In the programming assignments, you are going to develop a simple distributed ticket reservation system (DTRS). This system is used by customers (with unique 6-digit customerID s)
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