lecture13-arrays2

lecture13-arrays2 - cture 13: Arrays (cont d) Lecture 13:...

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Unformatted text preview: cture 13: Arrays (cont d) Lecture 13: Arrays (cont d) CS 170, Section 000 5 October 2009 15 October 2009 10/20/2009 CS170, Section 000, Fall 2009 1 Lecture Plan Arrays review (Ch 6.1-2) rray copying, passing to/from methods (Ch. 6.3- ) Array copying, passing to/from methods (Ch. 6.3 5) Last 5 minutes: Homework 4 overview (due Wed Oct 21 st ) 10/20/2009 CS170, Section 000, Fall 2009 2 Creating Arrays datatype arrayRefVar; Example: int numbers; arrayRefVar = new datatype[arraySize]; Example: numbers = new int[12]; 3 Declaring and Creating an Array in One Step atatype ] rrayRefVar Datatype arrayRefVar; arrayRefVar = new datatype[arraySize]; datatype arrayRefVar = ew atatype rraySize ; new datatype[arraySize]; ample: Example: int numbers = new int[12]; 4 ssigning Values to Array Elements Assigning Values to Array Elements arrayRefVar[index] = expression ; Example: myList[0] = 5.6; yList[1] = 4 5; myList[1] = 4.5; myList[9] = 11123; 5 The Length of an Array Once an array is created, its size is fixed. It cannot be changed. You can find its size using arrayRefVar.length For example: int numbers = new int[10]; nt en umbers length / / 1 6 int len = numbers.length; // 10 Accessing Array Elements The array elements are accessed through the...
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This note was uploaded on 04/03/2010 for the course CS CS 170 taught by Professor Eugeneagichtein during the Fall '09 term at Emory.

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lecture13-arrays2 - cture 13: Arrays (cont d) Lecture 13:...

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