COSC 111 Lecture Notes - Lecture 15: Boeing 737 Max, Method Stub, Array Data Structure

• School: UBC Okanagan, UBC OK
• Department: Computer Science
• Course: COSC 111
• Professor: Abdallah Mohamed

Document Summary

Declaring, creating, and initializing arrays int [] x; x = new int[3]; x[0] = 1; x[1] = 4; x[2] = 2; Declare: x is the name of the array with value null. Create: array x is made up of 3 integer elements. Initialize: refers to first element given value 1. Initialize: refers to second element given value 4. Initialize: refers to third elements given value 4. Declaring, creating, and initializing in one line int[] y = {1,4,2}; But, using this shorthand notation, must be all in one statement! will give an error int[] y; y = {1,4,2}; You can do different things to each element in the array. Scanner in = new scanner(system. in); int [] ages = new int[20]; ages[0] = 12; ages[19] = 1; More examples: int [] myarray = new int[20]; For loops = used if elements are processed in the same fashion repeatedly int[] nums = new int[100];