Advanced Topics in Java: Core Concepts in Data Structures by Noel Kalicharan

By Noel Kalicharan

Java is without doubt one of the most generally used programming languages this present day. It used to be first published by means of solar Microsystems in 1995. through the years, its recognition has grown to the purpose the place it performs a big position in such a lot of our lives. From laptops to info facilities, video game consoles to medical supercomputers, mobile phones to the web, Java is all over! There are a whole bunch purposes and lots of sites that won't paintings except you will have Java put in, and extra are created each day. And, in fact, Java is used to energy what has develop into the world's such a lot dominant cellular platform, Android.

Advanced issues In Java teaches the algorithms and ideas that any budding software program developer should still be aware of. You'll delve into subject matters equivalent to sorting, looking out, merging, recursion, random numbers and simulation, between others. you'll raise the diversity of difficulties you could remedy if you tips on how to create and control flexible and renowned information buildings akin to binary bushes and hash tables.

This publication assumes you might have a operating wisdom of simple programming ideas corresponding to variables, constants, task, choice (if..else) and looping (while, for). It additionally assumes you're pleased with writing capabilities and dealing with arrays. when you examine this ebook conscientiously and do the workouts carefully, you will turn into a greater and extra agile software program developer, extra ready to code today's functions - regardless of the language.

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We would, of course, need to know whether two objects are the same. That is, if a and b point to two objects, are the contents of these objects the same? To do this, we must write our own method that compares the fields, one by one. Using the class Part as an example, we write a method equals, which returns true if one object is identical to another and false otherwise. equals(b)) ... The method simply checks whether the name fields and the price fields of the two objects are the same. price); } In the method, the variables name and price (without being qualified) refer to the fields of the object via which the method is invoked.

An accessor method simply returns the value in a particular field. By convention, we preface the name of these methods with the word get. The methods are as follows: public String getName() { return name; } // accessor public double getPrice() { return price; } // accessor Note that the return type of an accessor is the same as the type of the field. For example, the return type of getName is String since name is of type String. Since an accessor method returns the value in an instance field, it makes sense to call it only in relation to a specific object (since each object has its own instance fields).

At the end, print the average number of points gained by the candidates. 8. A is an array sorted in descending order. B is an array sorted in descending order. Merge A and B into C so that C is in descending order. 9. A is an array sorted in descending order. B is an array sorted in descending order. Merge A and B into C so that C is in ascending order. 10. A is an array sorted in ascending order. B is an array sorted in descending order. Merge A and B into C so that C is in ascending order. 11.

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