Chapter 18, Problem 13RE

Explanation of Solution

Program:

//Header file

import java.util.ArrayList;

//Defining the class

public class Main

{

  //Defining the main()

  public static void main(String args[])

  {

    //Creating ArrayList

    ArrayList<String> strList = new ArrayList<String>();

    //Adding elements to the list

    strList.add("A");

    strList.add("B");

    strList.add("C");

    //Calling the method

    doSomethingBad(strList);

    //Retrieving wrong type element

    String first = strList.get(0);

}

//Defining the doSomethingBad()

public static void doSomethingBad(ArrayList list)

{

    //Adding wrong element to list

    list.add(0, new BankAccount(10000));

 }

}

Explanation:

• The raw ArrayList parameter is known as legacy method...