/* * * Append one array list onto the end of another * e.g. if the first...

Fantastic news! We've Found the answer you've been seeking!

Question:

/*
*
* Append one array list onto the end of another
* e.g. if the first array list contains 17 63 41 29 and the second contains 23 99 then
* after the append, the first array list should contain 17 63 41 29 23 99
* Difficulty: Easy
*/

import java.util.ArrayList;

public class AppendArrayLists
{
public static void main(String[] args)
{
ArrayList a = new ArrayList();
ArrayList b = new ArrayList();
int i;

for (i = 0; i < 5; i++)
{
/* Initialize array list a to some values */
a.add(i + 3);

}
System.out.print("a: ");
for (i = 0; i < a.size(); i++)
{
System.out.print(a.get(i) + " ");
}
System.out.println();

for (i = 0; i < 3; i++)
{
/* Initialize array list b to some values */
b.add(i + 2);
}
System.out.print("b: ");
for (i = 0; i < b.size(); i++)
{
System.out.print(b.get(i) + " ");
}
System.out.println();

// Append b to the end of a
append(a, b);

System. out.println("Result of append of a and b is: ");

for (i = 0; i < a.size(); i++)
{
System.out.print(a.get(i) + " ");
}
System.out.println();
System.out.println("Expected:3 4 5 6 7 2 3 4");

a.clear();
for (i = 0; i < 4; i++)
{
/* Initialize array list a to some values */
a.add(i + 7);

}
System.out.print("a: ");
for (i = 0; i < a.size(); i++)
{
System.out.print(a.get(i) + " ");
}
System.out.println();

b.clear();
System.out.print("b: ");
for (i = 0; i < b.size(); i++)
{
System.out.print(b.get(i) + " ");
}
System.out.println();

// Append b to the end of a
append(a, b);

System. out.println("Result of append of a and b is: ");

for (i = 0; i < a.size(); i++)
{
System.out.print(a.get(i) + " ");
}
System.out.println();
System.out.println("Expected:7 8 9 10");
}

/**
Append the given ArrayList b to the end of the given ArrayList a
@param integer ArrayList a
@param integer ArrayList b
*/
public static void append(ArrayList a, ArrayList b)
{
//-----------Start below here. To do: approximate lines of code = 3
// append the integer elements in ArrayList b to the end of ArrayList a
// Hint: use a for loop that goes through each element of ArrayList b
// Hint: google "java ArrayList" to see all the methods you can use. Use the add() method
// Hint: the size() method tells you how many elements are stored in the array list

//-----------------End here. Reminder: no changes outside the todo regions.
}
}