“The Last Lecture” Lecture
14
Apple[0] Apple[1] Apple[2] Apple[3] Apple[4]

Assignment 4 due Wednesday, August 24th by midnight!
Monday, August 24th: Final Exam
Monday, August 24 th : Extra Credit 01 due by midnight

• Course/Instructor Evaluation (CIE)
• Passing and Returning Arrays (Review)
• String Class
• Final Exam ( Wednesday, August 24 )
• Assignment 4 ( Wednesday, August 24 )
• Extra Credit 01 ( Wednesday, August 24 )

Course/Instructor Evaluations http://www.cascadia.edu
BIT115

The Last Quiz

Passing Arrays as Arguments
 Arrays are objects.
 Their references can be passed to methods like any other object reference variable.
showArray(numbers);
5 10 15 20 25 30 35 40
Address public static void showArray( int[] array)
{ for ( int i = 0; i < array.length; i++)
System.out.print(array[i] + " " );
}
Example: PassArray.java

In Last Wednesday’s Class we learned how you could pass an array into a method.
Today we’re going to take this to the next step to learn how you can return an array from a method.
A method can return a reference to an array. To do so, the return type of the method must be declared properly. For example, look at the following method definition:
double is the return type
 public static double[] getArray() // <-- No parameters called
{ double[] array = {1.2, 2.3, 4.5, 6.7, 8.9} return array;
}
return sends back a double
The getArray method is a public static method that returns an array of doubles.
See Example: ReturnArray.java

But, first, a look at the String class and the Extra Credit