jGuru: Help: Using Java Arrays

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Task 1

Make an array of 5 integers.

Define the array, but don't assign anything to it.

Task 2

Use a for loop to set the values of the array to the index plus 10.

To access the elemetns of the array, use the loop index, as in this example:

for(int i = 0; i < 5; i++) {
    myarray[i] = 0;
}

Task 3

Use a for loop to print out the values in the array.

To print a string, do this:

System.out.println("msg");

Task 4

Make an array of strings initialized to Frank, Bob, and Jim using the variable initializer syntax.

The initalization expression should be:

{ "Frank", "Bob", "Jim" }

Task 5

Use a for loop to print out the strings in the array.

This is similar to printing out integers.

Task 6

Set the last element of the array to Mike.

The string literal here should be "Mike"

Task 7

Print out the last element in the array.

The last index of an array is always one minus the length of the array.

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