8/13/2019 CS125 - Lab 08 - Structures

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CS125: Programming Fundamentals

Lab No. 8: Structures

Lab No. 8

Structures

Objective1. Structure Declaration2. Defining a Structure Variable3. Accessing Structures members4. Array of Structures5. Pointers to Structures6. Get and Set Functions.

Programming Practices

Declaring the Structures

The structure declaration tells how the structure is organized: It specifies what members thestructure will have. Here it is:

structpart

{intmodelnumber;

intpartnumber;floatcost;

};

Defining a Structure VariableThe first statement in main(),

intmain(){

part part1;

}

defines a variable, called part1, of type structure part. This definition reserves space in memory for

part1. How much space?

Exercise:Use sizeof() to check the size of part1variable.

Accessing Structure Membersintmain(){

part part1;part1.modelnumber = 6244;part1.partnumber=1234;

part1.cost=1200.99;

}

8/13/2019 CS125 - Lab 08 - Structures

2/3

CS125: Programming Fundamentals

Lab No. 8: Structures

Initializing Structure membersintmain(){

//initialize variable

part part1 = { 6244, 373, 217.55F };part part2; //define variable

//display first variablecout

8/13/2019 CS125 - Lab 08 - Structures

3/3

CS125: Programming Fundamentals

Lab No. 8: Structures

Pointer to Structureintmain(){

part* part1;

part1->partnumber=1234;part1->modelnumber=2007;part1->cost=129.75;

return0;}

Using Get and Set Functionsstructpart{intmodelnumber;intpartnumber;

floatcost;

voidset(intmn, intpn, floatc){

modelnumber=mn;partnumber=pn;

cost=c;}

intgetModelNumber(){

returnmodelnumber;

}intgetPartNumber(){

returnpartnumber;

}intgetCost(){

returncost;}};intmain()

{part part1;part1.set(1234,7657,22.3);cout