llapioNoteSet06

llapioNoteSet06 - 1 Principles of Programming I Note Set #6...

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Unformatted text preview: 1 Principles of Programming I Note Set #6 2 Homework 2 Review Static Variables in Main? Recursion? 3 Lets Review First 3 Steps in using file I /O 3 different data types with file I /O Library to include when using file I /O 3 different access flags when opening a file Passing file objects to functions 4 Semester Overview Functions Character File I /O Arrays Pointers and Dynamic Memory Allocation Structures/Records Binary File I /O 5 Variables so far. . . The variables weve used so far only hold one piece of data at any particular time. int a = 10; float area = 10.25243; 6 Array An array Holds multiple pieces of data I s accessible using an identifier (array name) with a index Has a fixed size (that must be known at compile time) Each individual element called element Arrays are 0 (zero) subscripted Start counting slots/elements from zero 7 One Zip Code Many Box Numbers 8 Array Declaration int empHours[10]; Data type of the elements Array Name Size Declarator (How many items to hold) int n[3] = {12, 24, 48}; ? ? ? n[0] n[1] n[2] 24 12 48 Array Declaration and Initializtation 9 Array in Memory empHours[9] empHours[8] empHours[7] empHours[6] empHours[5] empHours[4] empHours[3] empHours[2] empHours[1] empHours[0] ? ? ? ? ? ? ? ? ? ? Array is a contiguous block of memory slots Size of the array (amount of memory used) is NumSlots*sizeof(datatype) 10 Example Array Declarations float temp[100]; const int SIZE = 25; int class[SIZE]; double sizes[2500]; 11 Array Declaration and Initialization int n[3] = {12}; ? ? ?...
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llapioNoteSet06 - 1 Principles of Programming I Note Set #6...

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