Question

1. What is the type of the argument for the main method?

2. Given the following declaration, what is the type of myString[1]?

String myString[][] = new String[2][3];

3.Given the following declaration, what is the value of foo[2][1]?

int foo[][] = {{10,20,30,40}, {50,60,70, 80, 90}, {100,110,120}}

4. What is wrong with the following code?

int foo[] = new int [5];

for (int i = 0; i <= 5; i++)

{

foo[i] = 0;

}

5. What is one advantage of the ArrayList over a standard array?

Answer 1

1)
String[]

2)
String[]

3)
int

4)
for loop is trying to access foo[5], but that's not possible because size of array is 5. and hence the valid indexes are only from 0 to 4.

5)
ArrayLists can dynamically grow in size, while arrays can't.