Difference between revisions of "Intro Week 6"
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Review Generic Lists | Review Generic Lists | ||
| − | <csharp> | + | <syntaxhighlight lang="csharp"> |
List<int> scores = new List<int>(); //A list of ints | List<int> scores = new List<int>(); //A list of ints | ||
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} | } | ||
| − | </ | + | </syntaxhighlight> |
Simple arrays and multidimensional arrays | Simple arrays and multidimensional arrays | ||
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are composed of several pieces of data that can be of different types. | are composed of several pieces of data that can be of different types. | ||
| − | <csharp> | + | <syntaxhighlight lang="csharp"> |
struct student | struct student | ||
{ | { | ||
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public double GPA; | public double GPA; | ||
} | } | ||
| − | </ | + | </syntaxhighlight> |
| − | <csharp> | + | <syntaxhighlight lang="csharp"> |
struct player | struct player | ||
{ | { | ||
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public difficulty playerLevel; | public difficulty playerLevel; | ||
} | } | ||
| − | </ | + | </syntaxhighlight> |
In class demo coins | In class demo coins | ||
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Defining | Defining | ||
| − | <csharp>public static string Hello () | + | <syntaxhighlight lang="csharp">public static string Hello () |
{ | { | ||
return "Hello "; | return "Hello "; | ||
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{ | { | ||
return "Hello " + Name; | return "Hello " + Name; | ||
| − | }</ | + | }</syntaxhighlight> |
Calling a finction in c# | Calling a finction in c# | ||
| − | <csharp>string firstHello, jeffHello; //declare some strings | + | <syntaxhighlight lang="csharp">string firstHello, jeffHello; //declare some strings |
firstHello = Hello(); //call the function Hello | firstHello = Hello(); //call the function Hello | ||
jeffHello = HelloToName("Jeff"); //call the function HelloToName | jeffHello = HelloToName("Jeff"); //call the function HelloToName | ||
| − | </ | + | </syntaxhighlight> |
Console Example | Console Example | ||
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==Home work== | ==Home work== | ||
| − | Sweet card program http://iam.colum.edu/introtoprogramming/Jeff/SP10/ConsoleApplicationStructs.zip | + | Sweet card program http://iam.colum.edu/introtoprogramming/Jeff/SP10/ConsoleApplicationStructs.zip have it for super freeeee as in free beer |
Write a csharp program that uses a coin struct to make a coin collection | Write a csharp program that uses a coin struct to make a coin collection | ||
Latest revision as of 03:21, 9 February 2016
Review Arrays
Review Generic Lists
List<int> scores = new List<int>(); //A list of ints
List<string> names = new List<string>(); //A list of strings
//add some ints to the scores list
scores.Add(100);
scores.Add(7);
//Add some names to the names list
names.Add("Jeff");
names.Add("Uncle Eddie");
foreach(string name in names)
{
Console.WriteLine(name);
}
Simple arrays and multidimensional arrays
Struct
Structures -struct are composed of several pieces of data that can be of different types.
struct student
{
public int oasis id;
public string name;
public double GPA;
}
struct player
{
public int playerID;
public string playerName;
public difficulty playerLevel;
}
In class demo coins Quarter class *Mint *Year
Coin class *Mint *Year *Value
Functions/Methods
Function help with code reuse. If your going to use it more than once make it into a funtions. syntax simple
[access-modifier] return type indentifier ( [parateters] )
{
//some code
}
access-modifiers
public : mean that this method can be called from anywhere else in the program
Static
- static means that
Defining
public static string Hello ()
{
return "Hello ";
}
public static string HelloToName (string Name)
{
return "Hello " + Name;
}
Calling a finction in c#
string firstHello, jeffHello; //declare some strings
firstHello = Hello(); //call the function Hello
jeffHello = HelloToName("Jeff"); //call the function HelloToName
Console Example /infod/jeff/classSource/class3/function.cs - source
Hello World! Hello Hello Jeff Hello Marge C:\User\csharp>
Home work
Sweet card program http://iam.colum.edu/introtoprogramming/Jeff/SP10/ConsoleApplicationStructs.zip have it for super freeeee as in free beer
Write a csharp program that uses a coin struct to make a coin collection
start with
12 quarters
22 dimes
5 nickels
and 174 pennies.
After you have made the coin collection (Array or List). Write a method that can calculate the value of the collection.
Bonus
write a csharp program that can make correct change given an amount of money.
ie type in 1.08 and it will give back a coin collection of
4 quarters
1 nickel
3 pennies
