EBK STARTING OUT W/JAVA:...DATA...
EBK STARTING OUT W/JAVA:...DATA...
4th Edition
ISBN: 9780134757179
Author: GADDIS
Publisher: PEARSON CO
Expert Solution & Answer
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Chapter 17.2, Problem 17.7CP

Explanation of Solution

Instance creation without providing type argument:

Yes”, the instances of generic class can be created without providing type argument.

Explanation:

  • Instance creation of a generic class is possible without providing the type argument.

Example:

// Create generic class exam with type parameter T

public class exam<T>

{   

    //Declare the variable with type parameter T

    private T to;

    private T ra;

    //Define the generic class constructor

    public exam(T tot, T rank)

    {   

        //Assigning values for variable

        to= tot;

        ra=rank;

    }

    //Define the main method

    public static void main (String[] args)

    {

        //Create the Integer object

        Integer rank= new Integer(2);

            //Create Double object

        Double tot= new Double(466...

Explanation of Solution

Recommendation:

No”, it is not recommended, even the instance of a generic class can be created without providing the type argument.

Explanation:

  • Instance creation of a generic class is possible without providing the type argument.

Example:

// Create generic class exam with type parameter T

public class exam<T>

{   

    //Declare the variable with type parameter T

    private T to;

    private T ra;

    //Define the generic class constructor

    public exam(T tot, T rank)

    {   

        //Assigning values for variable

        to= tot;

        ra=rank;

    }

    //Define the main method

    public static void main (String[] args)

    {

        //Create the Integer object

        Integer rank= new Integer(2);

        //Create Double object

        Double tot= new Double(466...

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Chapter 17 Solutions

EBK STARTING OUT W/JAVA:...DATA...

Ch. 17.3 - Prob. 17.11CPCh. 17.3 - Prob. 17.12CPCh. 17.3 - Prob. 17.13CPCh. 17.3 - Prob. 17.14CPCh. 17.4 - Prob. 17.15CPCh. 17.5 - Prob. 17.16CPCh. 17.5 - Prob. 17.17CPCh. 17.6 - Prob. 17.18CPCh. 17.6 - Prob. 17.19CPCh. 17.6 - Prob. 17.20CPCh. 17.8 - Prob. 17.21CPCh. 17.8 - Prob. 17.22CPCh. 17.9 - Prob. 17.23CPCh. 17.9 - During the process of erasure, when the compiler...Ch. 17.9 - Prob. 17.25CPCh. 17 - Prob. 1MCCh. 17 - Prob. 2MCCh. 17 - Look at the following method header: void...Ch. 17 - Look at the following method header: void...Ch. 17 - Look at the following method header: void...Ch. 17 - Look at the following method header: void...Ch. 17 - Prob. 7MCCh. 17 - Prob. 8MCCh. 17 - Prob. 9MCCh. 17 - The process used by the Java compiler to remove...Ch. 17 - True or False: It is better to discover an error...Ch. 17 - Prob. 12TFCh. 17 - True or False: Type parameters must be single...Ch. 17 - Prob. 14TFCh. 17 - Prob. 15TFCh. 17 - True or False: You cannot create an array of...Ch. 17 - Prob. 17TFCh. 17 - Prob. 18TFCh. 17 - Prob. 1FTECh. 17 - Assume the following is a method header in a...Ch. 17 - public class MyClassT { public static void...Ch. 17 - public class PointT extends Number super Integer {...Ch. 17 - Assume there is a class named Customer. Write a...Ch. 17 - Assume names references an object of the...Ch. 17 - Prob. 3AWCh. 17 - Prob. 4AWCh. 17 - Prob. 5AWCh. 17 - Prob. 6AWCh. 17 - Prob. 7AWCh. 17 - Prob. 1SACh. 17 - Look at the following method header: public T...Ch. 17 - Prob. 3SACh. 17 - Do generic types exist at the bytecode level?Ch. 17 - Prob. 5SACh. 17 - When the compiler encounters a class, interface,...Ch. 17 - Prob. 1PCCh. 17 - Prob. 2PCCh. 17 - Prob. 3PCCh. 17 - Prob. 4PCCh. 17 - Prob. 5PCCh. 17 - Prob. 6PCCh. 17 - Prob. 7PC
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