Cracking the Coding Interview, 4 Edition - 150 Programming Interview Questions and Solutions

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Solutions to Chapter 14 | Java 14.3 What is the difference between final, finally, and finalize? SOLUTIONS pg 78 Final When applied to a variable (primitive): The value of the variable cannot change. When applied to a variable (reference): The reference variable cannot point to any other object on the heap. When applied to a method: The method cannot be overridden. When applied to a class: The class cannot be subclassed. Finally There is an optional finally block after the try block or after the catch block. Statements in the finally block will always be executed (except if JVM exits from the try block). The finally block is used to write the clean up code. Finalize This is the method that the JVM runs before running the garbage collector. 2 2 7 Cracking the Coding Interview | Knowledge Based
Solutions to Chapter 14 | Java 14.4 Explain the difference between templates in C++ and generics in Java. SOLUTION pg 78 C++ Templates Classes and functions can be templated. Parameters can be any type or integral value. Separate copies of the class or function are likely to be generated for each type parameter when compiled. Objects of a class with different type parameters are different types at run time. Implementation source code of the templated class or function must be included in order to use it (declaration insufficient). Templates can be specialized - a separate implementation could be provided for a particular template parameter. Does not support wildcards. Instead, return types are often available as nested typedefs. Does not directly support bounding of type parameters, but metaprogramming provides this. Allows instantiation of class of type parameter type. Type parameter of templated class can be used for static methods and variables. Static variables are not shared between classes of different type parameters. Java Generics Classes and methods can be genericized. Parameters can only be reference types (not primitive types). One version of the class or function is compiled, works for all type parameters. Type parameters are erased when compiled; objects of a class with different type parameters are the same type at run time. Signature of the class or function from a compiled class file is sufficient to use it. Generics cannot be specialized. Supports wildcard as type parameter if it is only used once. Supports bounding of type parameters with "extends" and "super" for upper and lower bounds, respectively; allows enforcement of relationships between type parameters. Does not allow instantiation of class of type parameter type. Type parameter of templated class cannot be used for static methods and variables. Static variables are shared between instances of a classes of different type parameters. From http://en.wikipedia.org/wiki/Comparison_of_Java_and_C%2B%2B#Templates_vs._Generics CareerCup.com 2 2 8
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CRACKING THE FOURTH EDITION C O D I
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Table of Contents Chapter 7 | Objec
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Introduction Something’s Wrong We
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Behind the Scenes For many candidat
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Behind the Scenes | The Amazon Inte
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Behind the Scenes | The Apple Inter
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Interview War Stories The View from
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Interview War Stories | Pop Divas P
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Interview War Stories | You Can (Ma
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Interview War Stories | Spider Sens
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Before the Interview | Resume Advic
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Before the Interview | Behavioral P
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Before the Interview | Technical Pr
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The Interview and Beyond
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At the Interview | Handling Behavio
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At the Interview | Handling Technic
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At the Interview | Five Algorithm A
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At the Interview | Five Algorithm A
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At the Interview | The Offer and Be
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At the Interview | Top Ten Mistakes
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At the Interview | Frequently Asked
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Interview Questions
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Chapter 1 | Arrays and Strings Hash
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Chapter 2 | Linked Lists How to App
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Chapter 3 | Stacks and Queues How t
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Chapter 4 | Trees and Graphs How to
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Part 2 Concepts and Algorithms
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Chapter 5 | Bit Manipulation 5.1 Yo
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Chapter 6 | Brain Teasers 6.1 Add a
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Chapter 7 | Object Oriented Design
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Chapter 8 | Recursion 8.1 Write a m
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Chapter 9 | Sorting and Searching 9
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Chapter 10 | Mathematical 10.1 You
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Chapter 11 | Testing 11.1 Find the
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Chapter 12 | System Design and Memo
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Chapter 13 | C++ How To Approach: A
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Chapter 14 | Java How to Approach:
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Chapter 15 | Databases How to Appro
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Chapter 16 | Low Level How to Appro
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Chapter 17 | Networking How to Appr
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Chapter 18 | Threads and Locks How
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Part 4 Additional Review Problems
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Chapter 19 | Moderate _____________
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Chapter 20 | Hard Input: DAMP, LIKE
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Solutions
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Solutions to Chapter 1 | Arrays and
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Solutions to Chapter 2 | Linked Lis
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Solutions to Chapter 3 | Stacks and
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Solutions to Chapter 19 | Moderate
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Solutions to Chapter 20 | Hard 2. O
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Solutions to Chapter 20 | Hard 20.3
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Solutions to Chapter 20 | Hard 10 1
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Solutions to Chapter 20 | Hard Val_
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Index A arithmetic 108, 131, 143, 1
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Mock Interviews Mock Interviews Stu
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